From patchwork Fri Nov 8 00:17:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233947 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AFB4715AB for ; Fri, 8 Nov 2019 00:18:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B98321D6C for ; Fri, 8 Nov 2019 00:18:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DAC0eNT2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728256AbfKHASL (ORCPT ); Thu, 7 Nov 2019 19:18:11 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:38437 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725928AbfKHASK (ORCPT ); Thu, 7 Nov 2019 19:18:10 -0500 Received: by mail-pl1-f195.google.com with SMTP id w8so2780873plq.5; Thu, 07 Nov 2019 16:18:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Rq+g8QX25r6FLU6mt3y3nVsMvxAZNZkHBwmo8ESYTGM=; b=DAC0eNT2b+5OPZ01U3euxVdhPtWjMxfFb7TdJo7CJT0wpndRDwZrz1hu5E+Jxw+wb9 xWMr7C0DvawOJ4PEuPrxicDfWMs2OiJ65D8gjSpFMlCr+2qzWoswf4ep/yYBexChd1o5 F+/rtMRI4zb/1iv1n7IQwEpNr7k4aQc6l9M14fSu2NZBqyFpTYitTqKfkWCGJLTZKyTQ +dmDauImLjfo/CnZDmsNADW7bgl3QYWMpM/x/C2P2kuGhGXK06dDbK/ODDR3TZb3vJbE IgSWSmIzU/mf4WDDmlF7OPNXcqH7GpewPfLLk9guJcb76z5JGFYolu6t64hMiNflPWPr fNCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Rq+g8QX25r6FLU6mt3y3nVsMvxAZNZkHBwmo8ESYTGM=; b=TvC72vb3oeYvOpV75EnaLLrmMeNb++cvEzxJqsNsOY42FD9RvA5RidcntD/1rf8wmh FeHdg7EzwnuzfdjD2X6sdZHPCa71hWolbmwcarwfjQQDQouEpUGF11vbkPbQ/g4ff68v wCzemzSFJ50Rld6eIxCQlPWe2RDeieg5mvq/6EitA9V1J/SyvIEqMFiKWlQjWJvnbdgd 3eWvIoR48aj2eevi4Po/tmgCMcCFAuZZpGFjrrz3NljQIFPMIurjmaTT2nOM3rs1izGf Shy6ckK8Y2N/oK9k+7Al84dymmNjD9LkjjGe57fRRs/OA4BpXy5iccPgKC25puA+paIs bUMQ== X-Gm-Message-State: APjAAAUquUYENe0ARYyIHTq2HVm2GWAuFFuIhfzvQJPJQRHtvpRcNlq2 1N5A0WFS0tnxjoeGqp3ckmE= X-Google-Smtp-Source: APXvYqwsq9PVHNT4wbkwcTE8nLpPUYnztbMZ61MyGDAQxZfsjN7Iil1O6quL0BRsyOeSI1m90u7UtQ== X-Received: by 2002:a17:90a:2623:: with SMTP id l32mr9521276pje.70.1573172289220; Thu, 07 Nov 2019 16:18:09 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:07 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 1/6] software node: rename is_array to is_inline Date: Thu, 7 Nov 2019 16:17:58 -0800 Message-Id: <20191108001803.191541-2-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org We do not need a special flag to know if we are dealing with an array, as we can get that data from ratio between element length and the data size, however we do need a flag to know whether the data is stored directly inside property_entry or separately. Signed-off-by: Dmitry Torokhov --- drivers/base/swnode.c | 12 +++++------- include/linux/property.h | 13 ++++++++----- 2 files changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index d8d0dc0ca5acf..18a30fb3cc588 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -108,10 +108,7 @@ static const void *property_get_pointer(const struct property_entry *prop) if (!prop->length) return NULL; - if (prop->is_array) - return prop->pointer; - - return &prop->value; + return prop->is_inline ? &prop->value : prop->pointer; } static const void *property_entry_find(const struct property_entry *props, @@ -205,7 +202,7 @@ static void property_entry_free_data(const struct property_entry *p) const char * const *src_str; size_t i, nval; - if (p->is_array) { + if (!p->is_inline) { if (p->type == DEV_PROP_STRING && p->pointer) { src_str = p->pointer; nval = p->length / sizeof(const char *); @@ -250,7 +247,7 @@ static int property_entry_copy_data(struct property_entry *dst, const void *pointer = property_get_pointer(src); const void *new; - if (src->is_array) { + if (!src->is_inline) { if (!src->length) return -ENODATA; @@ -264,15 +261,16 @@ static int property_entry_copy_data(struct property_entry *dst, return -ENOMEM; } - dst->is_array = true; dst->pointer = new; } else if (src->type == DEV_PROP_STRING) { new = kstrdup(src->value.str, GFP_KERNEL); if (!new && src->value.str) return -ENOMEM; + dst->is_inline = true; dst->value.str = new; } else { + dst->is_inline = true; dst->value = src->value; } diff --git a/include/linux/property.h b/include/linux/property.h index 48335288c2a96..dad0ad11b55e2 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -227,15 +227,17 @@ static inline int fwnode_property_count_u64(const struct fwnode_handle *fwnode, * struct property_entry - "Built-in" device property representation. * @name: Name of the property. * @length: Length of data making up the value. - * @is_array: True when the property is an array. + * @is_inline: True when the property value is embedded in + * &struct property_entry instance. * @type: Type of the data in unions. - * @pointer: Pointer to the property (an array of items of the given type). - * @value: Value of the property (when it is a single item of the given type). + * @pointer: Pointer to the property when it is stored separately from + * the &struct property_entry instance. + * @value: Value of the property when it is stored inline. */ struct property_entry { const char *name; size_t length; - bool is_array; + bool is_inline; enum dev_prop_type type; union { const void *pointer; @@ -262,7 +264,6 @@ struct property_entry { (struct property_entry) { \ .name = _name_, \ .length = (_len_) * __PROPERTY_ENTRY_ELEMENT_SIZE(_elem_), \ - .is_array = true, \ .type = DEV_PROP_##_Type_, \ { .pointer = _val_ }, \ } @@ -293,6 +294,7 @@ struct property_entry { (struct property_entry) { \ .name = _name_, \ .length = __PROPERTY_ENTRY_ELEMENT_SIZE(_elem_), \ + .is_inline = true, \ .type = DEV_PROP_##_Type_, \ { .value = { ._elem_ = _val_ } }, \ } @@ -311,6 +313,7 @@ struct property_entry { #define PROPERTY_ENTRY_BOOL(_name_) \ (struct property_entry) { \ .name = _name_, \ + .is_inline = true, \ } struct property_entry * From patchwork Fri Nov 8 00:17:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233945 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2CC981864 for ; Fri, 8 Nov 2019 00:18:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F369721D79 for ; Fri, 8 Nov 2019 00:18:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="pjFjJMQ+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728370AbfKHASL (ORCPT ); Thu, 7 Nov 2019 19:18:11 -0500 Received: from mail-pf1-f196.google.com ([209.85.210.196]:39770 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727952AbfKHASL (ORCPT ); Thu, 7 Nov 2019 19:18:11 -0500 Received: by mail-pf1-f196.google.com with SMTP id x28so3541153pfo.6; Thu, 07 Nov 2019 16:18:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KQSCppdZaKCRrnJqn7kJzSzcY0nHtGju8OtAz0SIovA=; b=pjFjJMQ+qNMOCJVldxq87LOmFidO/tSLNgf/ePtdxgi4L+3gsJ3tb+tQD64RGk26f1 QfvbY9QaMLC8s0ujhhzbev0PLsWsy5lch0E5NFzUwaB4QlvE9EAUGVULXljxQPAY33+r U5tHexKXcN6V52YSfgwWh/ijrB/etmP2WO4WyZM9MGUF75F618Af2Kdl/SzsnDZiphLs fFQTCuV377swm8MQNrVOcllM0+F1mr/2eZ7IV0lQZLXwNU632eH0R7Wk0+3bXFpG+jfp uql2LFoenJJPHp740+YUwsxvAj7ftf+8S7VQsi5/Obj9rWhLj2pvu6rae64OiWsXw1na SQPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KQSCppdZaKCRrnJqn7kJzSzcY0nHtGju8OtAz0SIovA=; b=lU4mKcmsiDxnyKeAtdGAWWCxj39yxXWZGlCouFNVAy0ITL33gASj5iaY0DOmMN/CES +IyK3sYMVmSD/YY7FkOwtd3hF2WWS+hemSTf5gf3n2GXpcfPuYbX0syxl0qfi219lt+4 LfJfaFdMykSECYKanH6hbQbkqB5dJ5PGHfYwvA2TQebB3LQfzq5AzJKa5S8w6PZCkRxa zAq5jCj1dIa89V8GCfRTtxHVxQIe7nsaAfUDW27dFZgheczhczgjSR+tpEjTHgP5E4re 5Ly34UcqIDYb+WF0FsMYObLrDJYed4EQrMKC/pBYG/hj84FtJ8xqQEN+Zy0c0fEnxtao KhNg== X-Gm-Message-State: APjAAAVmdMc1YY+D2n7NuhcHaMVz72uqDm3+o91VFnCf6p0D4z2Kj9n9 G0Urqes1CLGe3CUr0Tm2YmjEZ03Z X-Google-Smtp-Source: APXvYqww7UWD1XvSGI+l923OYpGIlLyerxrVPFz4rvM0XiFEuatrD9j615om+j0LKqKO4JscS6wFwg== X-Received: by 2002:a62:1d8e:: with SMTP id d136mr8067619pfd.49.1573172290016; Thu, 07 Nov 2019 16:18:10 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:09 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 2/6] software node: allow embedding of small arrays into property_entry Date: Thu, 7 Nov 2019 16:17:59 -0800 Message-Id: <20191108001803.191541-3-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org We should not conflate whether a property data is an array or a single value with where it is stored (embedded into property_entry structure or out-of-line). All single-value properties are in effect 1-element arrays, and we can figure the amount of data stored in a property by examining its length and the data type. And arrays can be as easily stored in property entry instances as single values are, provided that we have enough space (we have up to 8 bytes). We can embed: - up to 8 bytes from U8 arrays - up to 4 words - up to 2 double words - one U64 value - one (on 64 bit architectures) or 2 (on 32 bit) strings. This change also has an effect of switching properties with small amount of data to embed it instead of keeping it separate when copying such properties. Signed-off-by: Dmitry Torokhov --- drivers/base/swnode.c | 103 +++++++++++++++++++----------------------- 1 file changed, 47 insertions(+), 56 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 18a30fb3cc588..ce7f202b2455e 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -198,93 +198,84 @@ static int property_entry_read_string_array(const struct property_entry *props, static void property_entry_free_data(const struct property_entry *p) { - const void *pointer = property_get_pointer(p); const char * const *src_str; size_t i, nval; - if (!p->is_inline) { - if (p->type == DEV_PROP_STRING && p->pointer) { - src_str = p->pointer; - nval = p->length / sizeof(const char *); - for (i = 0; i < nval; i++) - kfree(src_str[i]); - } - kfree(pointer); - } else if (p->type == DEV_PROP_STRING) { - kfree(p->value.str); + if (p->type == DEV_PROP_STRING) { + src_str = property_get_pointer(p); + nval = p->length / sizeof(*src_str); + for (i = 0; i < nval; i++) + kfree(src_str[i]); } + + if (!p->is_inline) + kfree(p->pointer); + kfree(p->name); } -static const char * const * -property_copy_string_array(const struct property_entry *src) +static bool property_copy_string_array(const char **dst_ptr, + const char * const *src_ptr, + size_t nval) { - const char **d; - const char * const *src_str = src->pointer; - size_t nval = src->length / sizeof(*d); int i; - d = kcalloc(nval, sizeof(*d), GFP_KERNEL); - if (!d) - return NULL; - for (i = 0; i < nval; i++) { - d[i] = kstrdup(src_str[i], GFP_KERNEL); - if (!d[i] && src_str[i]) { + dst_ptr[i] = kstrdup(src_ptr[i], GFP_KERNEL); + if (!dst_ptr[i] && src_ptr[i]) { while (--i >= 0) - kfree(d[i]); - kfree(d); - return NULL; + kfree(dst_ptr[i]); + return false; } } - return d; + return true; } static int property_entry_copy_data(struct property_entry *dst, const struct property_entry *src) { const void *pointer = property_get_pointer(src); - const void *new; - - if (!src->is_inline) { - if (!src->length) - return -ENODATA; - - if (src->type == DEV_PROP_STRING) { - new = property_copy_string_array(src); - if (!new) - return -ENOMEM; - } else { - new = kmemdup(pointer, src->length, GFP_KERNEL); - if (!new) - return -ENOMEM; - } - - dst->pointer = new; - } else if (src->type == DEV_PROP_STRING) { - new = kstrdup(src->value.str, GFP_KERNEL); - if (!new && src->value.str) + void *dst_ptr; + size_t nval; + + /* + * Properties with no data should not be marked as stored + * out of line. + */ + if (!src->is_inline && !src->length) + return -ENODATA; + + if (src->length <= sizeof(dst->value)) { + dst_ptr = &dst->value; + dst->is_inline = true; + } else { + dst_ptr = kmalloc(src->length, GFP_KERNEL); + if (!dst_ptr) return -ENOMEM; + dst->pointer = dst_ptr; + } - dst->is_inline = true; - dst->value.str = new; + if (src->type == DEV_PROP_STRING) { + nval = src->length / sizeof(const char *); + if (!property_copy_string_array(dst_ptr, pointer, nval)) { + if (!dst->is_inline) + kfree(dst->pointer); + return -ENOMEM; + } } else { - dst->is_inline = true; - dst->value = src->value; + memcpy(dst_ptr, pointer, src->length); } dst->length = src->length; dst->type = src->type; dst->name = kstrdup(src->name, GFP_KERNEL); - if (!dst->name) - goto out_free_data; + if (!dst->name) { + property_entry_free_data(dst); + return -ENOMEM; + } return 0; - -out_free_data: - property_entry_free_data(dst); - return -ENOMEM; } /** From patchwork Fri Nov 8 00:18:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233937 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 08871112B for ; Fri, 8 Nov 2019 00:18:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D864C21D79 for ; Fri, 8 Nov 2019 00:18:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="P/ucsawO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728568AbfKHASQ (ORCPT ); Thu, 7 Nov 2019 19:18:16 -0500 Received: from mail-pf1-f195.google.com ([209.85.210.195]:42884 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725928AbfKHASM (ORCPT ); Thu, 7 Nov 2019 19:18:12 -0500 Received: by mail-pf1-f195.google.com with SMTP id s5so3526105pfh.9; Thu, 07 Nov 2019 16:18:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ayUB+Zje9XOtWri2ZwkcqJ23e3BRsxjTr/FbRYD45nI=; b=P/ucsawOyj4iGInyifA2hv7QVl0/QAqgCzVr5FrXFfq0KKI54sdD3sqrUytcCkocwW D52lmH7MUN4kuCzhl/+ax3xZuhX6enoIIX+gwPN50DURhVxqYRilBkGATsmcUDijksMv qNWdxqy0nETUC2MQQAtlHhsY/A8RZcSl8ZN8CIXB4UhTcVFXQai8dPoo2zKtjskDHxGG dV0Fy3HJcBJq4k5BhcS6AdY91UQPB0M8tOP87Q1LqL9Ut0JnMViI81L6MipO+MKgD6e5 cmF9/SZWdPM86dUU762kIa+sZXqMxCY+AFWtsCtrhcNrSIohwO8CLn9GzXivkw4MaObp h/gw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ayUB+Zje9XOtWri2ZwkcqJ23e3BRsxjTr/FbRYD45nI=; b=aoudvfpNzqEkooVuSE/ph+vcugP+RrMRnDhgxRrpDuFgouoJ+aj4ePt50gkxRNQDir +aeIamO4w3W3hsnRNnwPjkG2dKNABaHmKKmqUEMm8g0By+UfAq7Lfe/hTu/7Dst4PfIK txwZRZ54DL/GLVij0i/74Bs4gpb0eJJCdSN2kBVf6WOmwd1Ke85D4R71wquwlZWuyTha d43npMkBpsyYjolYZ4OtGNT9nljsmhjpDAO9Vc+zKNF7yNDkQoo5hJVOT+K3iuAmYBjN 1mZkujCE/7wWH0X9gWSkDshF9sGdhHOrDROPrlfogo2ta0YLeqoV+v8J3Je5ptF36je0 XSSQ== X-Gm-Message-State: APjAAAXq40oTxuZTFD8yGT7lVqYOCn9dJ66w1FP9SLqdJPN4mLRHi9JQ yJMlDFfU0G/7DnpYg3/Fw4A= X-Google-Smtp-Source: APXvYqwu6VQrGGJUTJXh9OYfuGqb5Ahu8tXNV4vuTGbVZu9rbN3sra2CZkTyBPvYXfE2xvUN4xdcRg== X-Received: by 2002:a62:e818:: with SMTP id c24mr7922214pfi.125.1573172291079; Thu, 07 Nov 2019 16:18:11 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:10 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 3/6] software node: implement reference properties Date: Thu, 7 Nov 2019 16:18:00 -0800 Message-Id: <20191108001803.191541-4-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org It is possible to store references to software nodes in the same fashion as other static properties, so that users do not need to define separate structures: static const struct software_node gpio_bank_b_node = { .name = "B", }; static const struct property_entry simone_key_enter_props[] = { PROPERTY_ENTRY_U32("linux,code", KEY_ENTER), PROPERTY_ENTRY_STRING("label", "enter"), PROPERTY_ENTRY_REF("gpios", &gpio_bank_b_node, 123, GPIO_ACTIVE_LOW), { } }; Signed-off-by: Dmitry Torokhov --- drivers/base/swnode.c | 49 ++++++++++++++++++++++++++++------ include/linux/property.h | 57 +++++++++++++++++++++++++++++----------- 2 files changed, 82 insertions(+), 24 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index ce7f202b2455e..809146f57aa45 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -246,6 +246,13 @@ static int property_entry_copy_data(struct property_entry *dst, if (!src->is_inline && !src->length) return -ENODATA; + /* + * Reference properties are never stored inline as + * they are too big. + */ + if (src->type == DEV_PROP_REF && src->is_inline) + return -EINVAL; + if (src->length <= sizeof(dst->value)) { dst_ptr = &dst->value; dst->is_inline = true; @@ -473,21 +480,47 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode, { struct swnode *swnode = to_swnode(fwnode); const struct software_node_reference *ref; + const struct software_node_ref_args *ref_array; + const struct software_node_ref_args *ref_args; const struct property_entry *prop; struct fwnode_handle *refnode; int i; - if (!swnode || !swnode->node->references) + if (!swnode) return -ENOENT; - for (ref = swnode->node->references; ref->name; ref++) - if (!strcmp(ref->name, propname)) - break; + prop = property_entry_get(swnode->node->properties, propname); + if (prop) { + if (prop->type != DEV_PROP_REF) + return -EINVAL; - if (!ref->name || index > (ref->nrefs - 1)) - return -ENOENT; + /* + * We expect that references are never stored inline, even + * single ones, as they are too big. + */ + if (prop->is_inline) + return -EINVAL; + + if (index * sizeof(*ref_args) >= prop->length) + return -ENOENT; + + ref_array = prop->pointer; + ref_args = &ref_array[index]; + } else { + if (!swnode->node->references) + return -ENOENT; + + for (ref = swnode->node->references; ref->name; ref++) + if (!strcmp(ref->name, propname)) + break; + + if (!ref->name || index > (ref->nrefs - 1)) + return -ENOENT; + + ref_args = &ref->refs[index]; + } - refnode = software_node_fwnode(ref->refs[index].node); + refnode = software_node_fwnode(ref_args->node); if (!refnode) return -ENOENT; @@ -506,7 +539,7 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode, args->nargs = nargs; for (i = 0; i < nargs; i++) - args->args[i] = ref->refs[index].args[i]; + args->args[i] = ref_args->args[i]; return 0; } diff --git a/include/linux/property.h b/include/linux/property.h index dad0ad11b55e2..68655c094b395 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -22,6 +22,7 @@ enum dev_prop_type { DEV_PROP_U32, DEV_PROP_U64, DEV_PROP_STRING, + DEV_PROP_REF, }; enum dev_dma_attr { @@ -223,6 +224,20 @@ static inline int fwnode_property_count_u64(const struct fwnode_handle *fwnode, return fwnode_property_read_u64_array(fwnode, propname, NULL, 0); } +struct software_node; + +/** + * struct software_node_ref_args - Reference property with additional arguments + * @node: Reference to a software node + * @nargs: Number of elements in @args array + * @args: Integer arguments + */ +struct software_node_ref_args { + const struct software_node *node; + unsigned int nargs; + u64 args[NR_FWNODE_REFERENCE_ARGS]; +}; + /** * struct property_entry - "Built-in" device property representation. * @name: Name of the property. @@ -260,14 +275,20 @@ struct property_entry { #define __PROPERTY_ENTRY_ELEMENT_SIZE(_elem_) \ sizeof(((struct property_entry *)NULL)->value._elem_) -#define __PROPERTY_ENTRY_ARRAY_LEN(_name_, _elem_, _Type_, _val_, _len_)\ +#define __PROPERTY_ENTRY_ARRAY_ELSIZE_LEN(_name_, _elsize_, _Type_, \ + _val_, _len_) \ (struct property_entry) { \ .name = _name_, \ - .length = (_len_) * __PROPERTY_ENTRY_ELEMENT_SIZE(_elem_), \ + .length = (_len_) * (_elsize_), \ .type = DEV_PROP_##_Type_, \ { .pointer = _val_ }, \ } +#define __PROPERTY_ENTRY_ARRAY_LEN(_name_, _elem_, _Type_, _val_, _len_)\ + __PROPERTY_ENTRY_ARRAY_ELSIZE_LEN(_name_, \ + __PROPERTY_ENTRY_ELEMENT_SIZE(_elem_), \ + _Type_, _val_, _len_) + #define PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, _len_) \ __PROPERTY_ENTRY_ARRAY_LEN(_name_, u8_data, U8, _val_, _len_) #define PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, _len_) \ @@ -278,6 +299,10 @@ struct property_entry { __PROPERTY_ENTRY_ARRAY_LEN(_name_, u64_data, U64, _val_, _len_) #define PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, _len_) \ __PROPERTY_ENTRY_ARRAY_LEN(_name_, str, STRING, _val_, _len_) +#define PROPERTY_ENTRY_REF_ARRAY_LEN(_name_, _val_, _len_) \ + __PROPERTY_ENTRY_ARRAY_ELSIZE_LEN(_name_, \ + sizeof(struct software_node_ref_args), \ + REF, _val_, _len_) #define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) @@ -289,6 +314,8 @@ struct property_entry { PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) #define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) +#define PROPERTY_ENTRY_REF_ARRAY(_name_, _val_) \ + PROPERTY_ENTRY_REF_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) #define __PROPERTY_ENTRY_ELEMENT(_name_, _elem_, _Type_, _val_) \ (struct property_entry) { \ @@ -316,6 +343,18 @@ struct property_entry { .is_inline = true, \ } +#define PROPERTY_ENTRY_REF(_name_, _ref_, ...) \ +(struct property_entry) { \ + .name = _name_, \ + .length = sizeof(struct software_node_ref_args), \ + .type = DEV_PROP_REF, \ + { .pointer = &(const struct software_node_ref_args) { \ + .node = _ref_, \ + .nargs = ARRAY_SIZE(((u64[]){ 0, ##__VA_ARGS__ })) - 1, \ + .args = { __VA_ARGS__ }, \ + } }, \ +} + struct property_entry * property_entries_dup(const struct property_entry *properties); @@ -379,20 +418,6 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, /* -------------------------------------------------------------------------- */ /* Software fwnode support - when HW description is incomplete or missing */ -struct software_node; - -/** - * struct software_node_ref_args - Reference with additional arguments - * @node: Reference to a software node - * @nargs: Number of elements in @args array - * @args: Integer arguments - */ -struct software_node_ref_args { - const struct software_node *node; - unsigned int nargs; - u64 args[NR_FWNODE_REFERENCE_ARGS]; -}; - /** * struct software_node_reference - Named software node reference property * @name: Name of the property From patchwork Fri Nov 8 00:18:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233943 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 99C20112B for ; Fri, 8 Nov 2019 00:18:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6C12021D6C for ; Fri, 8 Nov 2019 00:18:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="pwTIz0sS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728488AbfKHASP (ORCPT ); Thu, 7 Nov 2019 19:18:15 -0500 Received: from mail-pg1-f193.google.com ([209.85.215.193]:44680 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726556AbfKHASO (ORCPT ); Thu, 7 Nov 2019 19:18:14 -0500 Received: by mail-pg1-f193.google.com with SMTP id f19so2956822pgk.11; Thu, 07 Nov 2019 16:18:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=9yY1ilCQrcIHxsUtMS2U9uQS4obcy3+hHr81/tVLigE=; b=pwTIz0sSlxjLXzC0Ixjx71rddWcGX1a5UNxzxh9KTLmo2ucoPoGpYhtjokwW44m2y2 Lp5UnPrZLv+CqeTOKnJgE4H8mlF++ziBgTlkKVQGzl5+HSu8xet75fKPm30kfwH9kgaf wuRLujthYazXZKvwdoFAuVa3ZmewaNNR7ZBlHavwkU4+bvWieXvNtF+TshABQk35CeVQ aQWSMv21Udg9BJljvQuHUGW2kt9gZ4UR0q8xFpNxCLrTvKOJpODJCryOpzZDvWzxx+tH tlvVJ0ZNWrnNJL9TU3dfAgiN2C6P/zBqrmZBRtQa5ClUL83y0q2VQ4F5plKMn1eyTX5F lqGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=9yY1ilCQrcIHxsUtMS2U9uQS4obcy3+hHr81/tVLigE=; b=ZFLf4uFnZ2tXehelNQsedCHadoWbmy/iffGLq1l7Z+oiaWuPUGhqUSFszVY5Fzqept /3WK18anzwetATASzeOMTfF74DsjHe/8BZegrFPtfQ72znyljSVFxa4y05rgwzep1mV1 DqIVvEqWqQ32rCeFwVc3oHCvTiLFpLOhWBFPNWblpUGVExrtJ6o0o973XeVMmwGUOGli eh2Q54IGIZtQM7CN4oT3KSUyGekAFPvnS2dFo1LAm8SDha87JQnwz1h8TBsLBO2t6ZAE jbT0PmnyX0G3hK5kgIRi1GUHvI9v8kPwZDlXNjdHELpUFVbW48fNMl7eEmJdPswZ8pWk NtUw== X-Gm-Message-State: APjAAAUBz/fDVSeC8M2YKpKAzjmVtf3SoViQkZw+ORKYn0yVGWW6U1kO isMRojkhA2cWBXXgLk+68zCAv8qc X-Google-Smtp-Source: APXvYqzD0l770YLN/Ptb+lifoS5B9LJmcBFdDZqtWIstMD5frdY7eMMaGQjELWyxCVeEcdBn+/LZbg== X-Received: by 2002:a63:cb4f:: with SMTP id m15mr8374706pgi.325.1573172293007; Thu, 07 Nov 2019 16:18:13 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:11 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 4/6] platform/x86: intel_cht_int33fe: use inline reference properties Date: Thu, 7 Nov 2019 16:18:01 -0800 Message-Id: <20191108001803.191541-5-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Now that static device properties allow defining reference properties together with all other types of properties, instead of managing them separately, let's adjust the driver. Acked-by: Andy Shevchenko Signed-off-by: Dmitry Torokhov --- .../platform/x86/intel_cht_int33fe_typec.c | 81 ++++++++++--------- 1 file changed, 41 insertions(+), 40 deletions(-) diff --git a/drivers/platform/x86/intel_cht_int33fe_typec.c b/drivers/platform/x86/intel_cht_int33fe_typec.c index 2d097fc2dd465..04138215956bf 100644 --- a/drivers/platform/x86/intel_cht_int33fe_typec.c +++ b/drivers/platform/x86/intel_cht_int33fe_typec.c @@ -36,30 +36,6 @@ enum { INT33FE_NODE_MAX, }; -static const struct software_node nodes[]; - -static const struct software_node_ref_args pi3usb30532_ref = { - &nodes[INT33FE_NODE_PI3USB30532] -}; - -static const struct software_node_ref_args dp_ref = { - &nodes[INT33FE_NODE_DISPLAYPORT] -}; - -static struct software_node_ref_args mux_ref; - -static const struct software_node_reference usb_connector_refs[] = { - { "orientation-switch", 1, &pi3usb30532_ref}, - { "mode-switch", 1, &pi3usb30532_ref}, - { "displayport", 1, &dp_ref}, - { } -}; - -static const struct software_node_reference fusb302_refs[] = { - { "usb-role-switch", 1, &mux_ref}, - { } -}; - /* * Grrr I severly dislike buggy BIOS-es. At least one BIOS enumerates * the max17047 both through the INT33FE ACPI device (it is right there @@ -95,8 +71,18 @@ static const struct property_entry max17047_props[] = { { } }; +/* + * We are not using inline property here because those are constant, + * and we need to adjust this one at runtime to point to real + * software node. + */ +static struct software_node_ref_args fusb302_mux_refs[] = { + { .node = NULL }, +}; + static const struct property_entry fusb302_props[] = { PROPERTY_ENTRY_STRING("linux,extcon-name", "cht_wcove_pwrsrc"), + PROPERTY_ENTRY_REF_ARRAY("usb-role-switch", fusb302_mux_refs), { } }; @@ -112,6 +98,8 @@ static const u32 snk_pdo[] = { PDO_VAR(5000, 12000, 3000), }; +static const struct software_node nodes[]; + static const struct property_entry usb_connector_props[] = { PROPERTY_ENTRY_STRING("data-role", "dual"), PROPERTY_ENTRY_STRING("power-role", "dual"), @@ -119,15 +107,21 @@ static const struct property_entry usb_connector_props[] = { PROPERTY_ENTRY_U32_ARRAY("source-pdos", src_pdo), PROPERTY_ENTRY_U32_ARRAY("sink-pdos", snk_pdo), PROPERTY_ENTRY_U32("op-sink-microwatt", 2500000), + PROPERTY_ENTRY_REF("orientation-switch", + &nodes[INT33FE_NODE_PI3USB30532]), + PROPERTY_ENTRY_REF("mode-switch", + &nodes[INT33FE_NODE_PI3USB30532]), + PROPERTY_ENTRY_REF("displayport", + &nodes[INT33FE_NODE_DISPLAYPORT]), { } }; static const struct software_node nodes[] = { - { "fusb302", NULL, fusb302_props, fusb302_refs }, + { "fusb302", NULL, fusb302_props }, { "max17047", NULL, max17047_props }, { "pi3usb30532" }, { "displayport" }, - { "connector", &nodes[0], usb_connector_props, usb_connector_refs }, + { "connector", &nodes[0], usb_connector_props }, { } }; @@ -163,9 +157,10 @@ static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data) { software_node_unregister_nodes(nodes); - if (mux_ref.node) { - fwnode_handle_put(software_node_fwnode(mux_ref.node)); - mux_ref.node = NULL; + if (fusb302_mux_refs[0].node) { + fwnode_handle_put( + software_node_fwnode(fusb302_mux_refs[0].node)); + fusb302_mux_refs[0].node = NULL; } if (data->dp) { @@ -177,25 +172,31 @@ static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data) static int cht_int33fe_add_nodes(struct cht_int33fe_data *data) { + const struct software_node *mux_ref_node; int ret; - ret = software_node_register_nodes(nodes); - if (ret) - return ret; - - /* The devices that are not created in this driver need extra steps. */ - /* * There is no ACPI device node for the USB role mux, so we need to wait * until the mux driver has created software node for the mux device. * It means we depend on the mux driver. This function will return * -EPROBE_DEFER until the mux device is registered. */ - mux_ref.node = software_node_find_by_name(NULL, "intel-xhci-usb-sw"); - if (!mux_ref.node) { - ret = -EPROBE_DEFER; - goto err_remove_nodes; - } + mux_ref_node = software_node_find_by_name(NULL, "intel-xhci-usb-sw"); + if (!mux_ref_node) + return -EPROBE_DEFER; + + /* + * Update node used in "usb-role-switch" property. Note that we + * rely on software_node_register_nodes() to use the original + * instance of properties instead of copying them. + */ + fusb302_mux_refs[0].node = mux_ref_node; + + ret = software_node_register_nodes(nodes); + if (ret) + return ret; + + /* The devices that are not created in this driver need extra steps. */ /* * The DP connector does have ACPI device node. In this case we can just From patchwork Fri Nov 8 00:18:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233941 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ADB3A112B for ; Fri, 8 Nov 2019 00:18:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A2CF21D6C for ; Fri, 8 Nov 2019 00:18:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DZteuO4d" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728525AbfKHASP (ORCPT ); Thu, 7 Nov 2019 19:18:15 -0500 Received: from mail-pf1-f193.google.com ([209.85.210.193]:33203 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727952AbfKHASP (ORCPT ); Thu, 7 Nov 2019 19:18:15 -0500 Received: by mail-pf1-f193.google.com with SMTP id c184so3582001pfb.0; Thu, 07 Nov 2019 16:18:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sO4aD46q4EABKrP8LLceQDRZ7MVOUHaHnUQ8y0rtL9Y=; b=DZteuO4dO6HC0iWYzGecKtBwbz+Ti0PhyrEmcm1ixpTPcUJmtEuwtSX2c8LRVE8E/E 01aSxI2dxx2oFO+rueFP4D5BsopkSlD96l2H0WFoMf7R4pKh7Fcx6Vbo+L1Nu95p9Eef xxgnt7XvdGoOEyqNztQqTsgi4u2GGciwQVom+cbzVrBExXPhE0SE2mSFcikNWzliJGhA NJ8KNMi0ED3ybi/N4NZNnaVApOnTaj6AmoeSjn+oEC6iMW1nDKMLpLd99alUxaLieQPg /vN04MpTnGXlIulhXL7ik88an6buowdVMwmq5FHqcTl174GZxvm3TjCZksRXfEOmwemF 4dVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sO4aD46q4EABKrP8LLceQDRZ7MVOUHaHnUQ8y0rtL9Y=; b=Da5nec960RDEB5brizCgrORZaBCGQPImphoCJMtPA+1JcD83+9UxGoNNkrK5eMCWwg M2OfTyjVpNBK36VcC74JGieIP1jMStFuTltpLwR1rwdxEt1bLvYH4dXBfYmvym8i+QLO FAbdy20QXoV8NHT87jjgLrM7gyUIQ0SF0X253hJHJbmADZ/ysXSQkv2QxTiIa4lgGXO0 +EOj2zzcCM/lpveOwvd0c5VfwIxDqyCSWr+j+Nv2OUS1XCIfgprHEp3k69WSWjARMrDC WSG182BxlO+IqV4rpXWUaZjdh24KU5iNIumygRiwHTxYEeie+6o0Sz52wzRigzPOLUtE JdAw== X-Gm-Message-State: APjAAAUIMFW4Cj6BPnsXnAF2WuVfqb91Adnm5fevlQ8waE2Ebzf7rZSe Vvw6AEU2kBAHxttfBnLcst4= X-Google-Smtp-Source: APXvYqxs1K+BtG4WBu9yRyUZCztww/N8vv3TtoZzONk82w8sGOP/gL143CV3nkrH6cFEVphiSMEl4Q== X-Received: by 2002:aa7:9348:: with SMTP id 8mr7798989pfn.135.1573172294043; Thu, 07 Nov 2019 16:18:14 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:13 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 5/6] software node: remove separate handling of references Date: Thu, 7 Nov 2019 16:18:02 -0800 Message-Id: <20191108001803.191541-6-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Now that all users of references have moved to reference properties, we can remove separate handling of references. Signed-off-by: Dmitry Torokhov --- drivers/base/swnode.c | 46 +++++++++++++++------------------------- include/linux/property.h | 14 ------------ 2 files changed, 17 insertions(+), 43 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 809146f57aa45..bb6c3c052d23c 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -479,9 +479,8 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode, struct fwnode_reference_args *args) { struct swnode *swnode = to_swnode(fwnode); - const struct software_node_reference *ref; const struct software_node_ref_args *ref_array; - const struct software_node_ref_args *ref_args; + const struct software_node_ref_args *ref; const struct property_entry *prop; struct fwnode_handle *refnode; int i; @@ -490,37 +489,26 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode, return -ENOENT; prop = property_entry_get(swnode->node->properties, propname); - if (prop) { - if (prop->type != DEV_PROP_REF) - return -EINVAL; - - /* - * We expect that references are never stored inline, even - * single ones, as they are too big. - */ - if (prop->is_inline) - return -EINVAL; - - if (index * sizeof(*ref_args) >= prop->length) - return -ENOENT; + if (!prop) + return -ENOENT; - ref_array = prop->pointer; - ref_args = &ref_array[index]; - } else { - if (!swnode->node->references) - return -ENOENT; + if (prop->type != DEV_PROP_REF) + return -EINVAL; - for (ref = swnode->node->references; ref->name; ref++) - if (!strcmp(ref->name, propname)) - break; + /* + * We expect that references are never stored inline, even + * single ones, as they are too big. + */ + if (prop->is_inline) + return -EINVAL; - if (!ref->name || index > (ref->nrefs - 1)) - return -ENOENT; + if (index * sizeof(*ref) >= prop->length) + return -ENOENT; - ref_args = &ref->refs[index]; - } + ref_array = prop->pointer; + ref = &ref_array[index]; - refnode = software_node_fwnode(ref_args->node); + refnode = software_node_fwnode(ref->node); if (!refnode) return -ENOENT; @@ -539,7 +527,7 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode, args->nargs = nargs; for (i = 0; i < nargs; i++) - args->args[i] = ref_args->args[i]; + args->args[i] = ref->args[i]; return 0; } diff --git a/include/linux/property.h b/include/linux/property.h index 68655c094b395..b315fdc0ec28d 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -418,30 +418,16 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, /* -------------------------------------------------------------------------- */ /* Software fwnode support - when HW description is incomplete or missing */ -/** - * struct software_node_reference - Named software node reference property - * @name: Name of the property - * @nrefs: Number of elements in @refs array - * @refs: Array of references with optional arguments - */ -struct software_node_reference { - const char *name; - unsigned int nrefs; - const struct software_node_ref_args *refs; -}; - /** * struct software_node - Software node description * @name: Name of the software node * @parent: Parent of the software node * @properties: Array of device properties - * @references: Array of software node reference properties */ struct software_node { const char *name; const struct software_node *parent; const struct property_entry *properties; - const struct software_node_reference *references; }; bool is_software_node(const struct fwnode_handle *fwnode); From patchwork Fri Nov 8 00:18:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Torokhov X-Patchwork-Id: 11233935 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A9F531864 for ; Fri, 8 Nov 2019 00:18:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6982121D6C for ; Fri, 8 Nov 2019 00:18:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="vF9qL09N" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728740AbfKHASY (ORCPT ); Thu, 7 Nov 2019 19:18:24 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:38069 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728567AbfKHASQ (ORCPT ); Thu, 7 Nov 2019 19:18:16 -0500 Received: by mail-pg1-f195.google.com with SMTP id 15so2990413pgh.5; Thu, 07 Nov 2019 16:18:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=RFrM/IahGbn36aeCNSBF2NbdB2UIEkSbp7j1U/R43X8=; b=vF9qL09Nc5VFyECrfx2/sutggpKwZRxb5vzvhEYLHuLdOjx3aVC9RH575LhqNTX8k6 xUV++MKeUYwv1idw9qQh6ZsqXRWwFHWcUEDIAEwS/M2Ui2S22u+BSHvWh3M9VC0RY2lW tMOcHfnw0xj0VziFuwnuN9+DsRJ32aQ7Ywf5MQi0xcwLYkCkAxQz885XUjMUJDS0dn0s K74NlGvfBKQaQoKom+Jw3UKEPCHQNJ0VU8OGr4+iuoQzFq1a8oj4hEibrTpLhnwPUZX9 E0qpZ1Fh4lVBSQgn1s5N2+dDdoVjEvfxvX5QPdKwMbTePS3+v8IwNsp7hijKoJvTZvFg WEPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=RFrM/IahGbn36aeCNSBF2NbdB2UIEkSbp7j1U/R43X8=; b=nq/Gy/cUlNsvPbT2vvK5rDqzwPgXGa+aZAeA6pGm38HgzVb1R/KY6bxjh3EYCzUy/H sl47qMrpN3S5R8jBL2JHHjg0iPi8S3h8QpZXBQRHZEnIQv9n2i8hD7FuH/oKuXh0XKaW T2hssXmY9LC6jz4S6JhwzMoCJFOfInBZYQbgQDOdwXBc+2dJhAClE2MVKwxCwgNLbb2A lUKJnuEhUjqWbSQTSx73hu2pV25UoCuqmPnGnPggjy29o78NhfqX/0vSwDvY8C1fU099 kX9iG+28R4nmE0HNIV58GIRcpHZM18WnGLU1mMyiwdxbJNQkwDYkCVbWPbIemN4hCSFy DWrQ== X-Gm-Message-State: APjAAAWFDnSqZfE9RReqPl2LDqxaKyWSHW7HwRomQ7FBDwbFVOFbAQIc VJSd+5FbTknKreKlPenTLtM= X-Google-Smtp-Source: APXvYqyuEbXnFkngCDNfkfHDVosVsyKpIs9kq6iPrcvoyP97dZ+2NdtDJbtaSOizO2TXFemeUjEzmw== X-Received: by 2002:a17:902:441:: with SMTP id 59mr7033736ple.300.1573172295178; Thu, 07 Nov 2019 16:18:15 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:202:201:3adc:b08c:7acc:b325]) by smtp.gmail.com with ESMTPSA id m68sm3688764pfb.122.2019.11.07.16.18.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 16:18:14 -0800 (PST) From: Dmitry Torokhov To: "Rafael J. Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v7 6/6] software node: add basic tests for property entries Date: Thu, 7 Nov 2019 16:18:03 -0800 Message-Id: <20191108001803.191541-7-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog In-Reply-To: <20191108001803.191541-1-dmitry.torokhov@gmail.com> References: <20191108001803.191541-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org This adds tests for creating software nodes with properties supplied by PROPERTY_ENTRY_XXX() macros and fetching and validating data from said nodes/properties. We are using KUnit framework for the tests. Signed-off-by: Dmitry Torokhov --- drivers/base/test/Makefile | 2 + drivers/base/test/property-entry-test.c | 472 ++++++++++++++++++++++++ 2 files changed, 474 insertions(+) create mode 100644 drivers/base/test/property-entry-test.c diff --git a/drivers/base/test/Makefile b/drivers/base/test/Makefile index 0f1f7277a0139..22143102e5d21 100644 --- a/drivers/base/test/Makefile +++ b/drivers/base/test/Makefile @@ -1,2 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_TEST_ASYNC_DRIVER_PROBE) += test_async_driver_probe.o + +obj-$(CONFIG_KUNIT) += property-entry-test.o diff --git a/drivers/base/test/property-entry-test.c b/drivers/base/test/property-entry-test.c new file mode 100644 index 0000000000000..d6ac84c8ebd06 --- /dev/null +++ b/drivers/base/test/property-entry-test.c @@ -0,0 +1,472 @@ +// SPDX-License-Identifier: GPL-2.0 +// Unit tests for property entries API +// +// Copyright 2019 Google LLC. + +#include +#include +#include + +static void pe_test_uints(struct kunit *test) +{ + const struct property_entry entries[] = { + PROPERTY_ENTRY_U8("prop-u8", 8), + PROPERTY_ENTRY_U16("prop-u16", 16), + PROPERTY_ENTRY_U32("prop-u32", 32), + PROPERTY_ENTRY_U64("prop-u64", 64), + { } + }; + + struct fwnode_handle *node; + u8 val_u8, array_u8[2]; + u16 val_u16, array_u16[2]; + u32 val_u32, array_u32[2]; + u64 val_u64, array_u64[2]; + int error; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + error = fwnode_property_read_u8(node, "prop-u8", &val_u8); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u8, 8); + + error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8); + + error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 2); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u8(node, "no-prop-u8", &val_u8); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u8_array(node, "no-prop-u8", array_u8, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16(node, "prop-u16", &val_u16); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u16, 16); + + error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16); + + error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 2); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16(node, "no-prop-u16", &val_u16); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16_array(node, "no-prop-u16", array_u16, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32(node, "prop-u32", &val_u32); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u32, 32); + + error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32); + + error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 2); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32(node, "no-prop-u32", &val_u32); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32_array(node, "no-prop-u32", array_u32, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64(node, "prop-u64", &val_u64); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u64, 64); + + error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64); + + error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 2); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64(node, "no-prop-u64", &val_u64); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64_array(node, "no-prop-u64", array_u64, 1); + KUNIT_EXPECT_NE(test, error, 0); + + fwnode_remove_software_node(node); +} + +static void pe_test_uint_arrays(struct kunit *test) +{ + u8 a_u8[16] = { 8, 9 }; + u16 a_u16[16] = { 16, 17 }; + u32 a_u32[16] = { 32, 33 }; + u64 a_u64[16] = { 64, 65 }; + const struct property_entry entries[] = { + PROPERTY_ENTRY_U8_ARRAY("prop-u8", a_u8), + PROPERTY_ENTRY_U16_ARRAY("prop-u16", a_u16), + PROPERTY_ENTRY_U32_ARRAY("prop-u32", a_u32), + PROPERTY_ENTRY_U64_ARRAY("prop-u64", a_u64), + { } + }; + + struct fwnode_handle *node; + u8 val_u8, array_u8[32]; + u16 val_u16, array_u16[32]; + u32 val_u32, array_u32[32]; + u64 val_u64, array_u64[32]; + int error; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + error = fwnode_property_read_u8(node, "prop-u8", &val_u8); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u8, 8); + + error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8); + + error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 2); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8); + KUNIT_EXPECT_EQ(test, (int)array_u8[1], 9); + + error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 17); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u8(node, "no-prop-u8", &val_u8); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u8_array(node, "no-prop-u8", array_u8, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16(node, "prop-u16", &val_u16); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u16, 16); + + error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16); + + error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 2); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16); + KUNIT_EXPECT_EQ(test, (int)array_u16[1], 17); + + error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 17); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16(node, "no-prop-u16", &val_u16); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u16_array(node, "no-prop-u16", array_u16, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32(node, "prop-u32", &val_u32); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u32, 32); + + error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32); + + error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 2); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32); + KUNIT_EXPECT_EQ(test, (int)array_u32[1], 33); + + error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 17); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32(node, "no-prop-u32", &val_u32); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u32_array(node, "no-prop-u32", array_u32, 1); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64(node, "prop-u64", &val_u64); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)val_u64, 64); + + error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 1); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64); + + error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 2); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64); + KUNIT_EXPECT_EQ(test, (int)array_u64[1], 65); + + error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 17); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64(node, "no-prop-u64", &val_u64); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_u64_array(node, "no-prop-u64", array_u64, 1); + KUNIT_EXPECT_NE(test, error, 0); + + fwnode_remove_software_node(node); +} + +static void pe_test_strings(struct kunit *test) +{ + const char *strings[] = { + "string-a", + "string-b", + }; + + const struct property_entry entries[] = { + PROPERTY_ENTRY_STRING("str", "single"), + PROPERTY_ENTRY_STRING("empty", ""), + PROPERTY_ENTRY_STRING_ARRAY("strs", strings), + { } + }; + + struct fwnode_handle *node; + const char *str; + const char *strs[10]; + int error; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + error = fwnode_property_read_string(node, "str", &str); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_STREQ(test, str, "single"); + + error = fwnode_property_read_string_array(node, "str", strs, 1); + KUNIT_EXPECT_EQ(test, error, 1); + KUNIT_EXPECT_STREQ(test, strs[0], "single"); + + /* asking for more data returns what we have */ + error = fwnode_property_read_string_array(node, "str", strs, 2); + KUNIT_EXPECT_EQ(test, error, 1); + KUNIT_EXPECT_STREQ(test, strs[0], "single"); + + error = fwnode_property_read_string(node, "no-str", &str); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_read_string_array(node, "no-str", strs, 1); + KUNIT_EXPECT_LT(test, error, 0); + + error = fwnode_property_read_string(node, "empty", &str); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_STREQ(test, str, ""); + + error = fwnode_property_read_string_array(node, "strs", strs, 3); + KUNIT_EXPECT_EQ(test, error, 2); + KUNIT_EXPECT_STREQ(test, strs[0], "string-a"); + KUNIT_EXPECT_STREQ(test, strs[1], "string-b"); + + error = fwnode_property_read_string_array(node, "strs", strs, 1); + KUNIT_EXPECT_EQ(test, error, 1); + KUNIT_EXPECT_STREQ(test, strs[0], "string-a"); + + /* NULL argument -> returns size */ + error = fwnode_property_read_string_array(node, "strs", NULL, 0); + KUNIT_EXPECT_EQ(test, error, 2); + + /* accessing array as single value */ + error = fwnode_property_read_string(node, "strs", &str); + KUNIT_EXPECT_EQ(test, error, 0); + KUNIT_EXPECT_STREQ(test, str, "string-a"); + + fwnode_remove_software_node(node); +} + +static void pe_test_bool(struct kunit *test) +{ + const struct property_entry entries[] = { + PROPERTY_ENTRY_BOOL("prop"), + { } + }; + + struct fwnode_handle *node; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + KUNIT_EXPECT_TRUE(test, fwnode_property_read_bool(node, "prop")); + KUNIT_EXPECT_FALSE(test, fwnode_property_read_bool(node, "not-prop")); + + fwnode_remove_software_node(node); +} + +/* Verifies that small U8 array is stored inline when property is copied */ +static void pe_test_move_inline_u8(struct kunit *test) +{ + u8 u8_array_small[8] = { 1, 2, 3, 4 }; + u8 u8_array_big[128] = { 5, 6, 7, 8 }; + struct property_entry entries[] = { + PROPERTY_ENTRY_U8_ARRAY("small", u8_array_small), + PROPERTY_ENTRY_U8_ARRAY("big", u8_array_big), + { } + }; + struct property_entry *copy; + const u8 *data_ptr; + + copy = property_entries_dup(entries); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, copy); + + KUNIT_EXPECT_TRUE(test, copy[0].is_inline); + data_ptr = (u8 *)©[0].value; + KUNIT_EXPECT_EQ(test, (int)data_ptr[0], 1); + KUNIT_EXPECT_EQ(test, (int)data_ptr[1], 2); + + KUNIT_EXPECT_FALSE(test, copy[1].is_inline); + data_ptr = copy[1].pointer; + KUNIT_EXPECT_EQ(test, (int)data_ptr[0], 5); + KUNIT_EXPECT_EQ(test, (int)data_ptr[1], 6); + + property_entries_free(copy); +} + +/* Verifies that single string array is stored inline when property is copied */ +static void pe_test_move_inline_str(struct kunit *test) +{ + char *str_array_small[] = { "a" }; + char *str_array_big[] = { "b", "c", "d", "e" }; + char *str_array_small_empty[] = { "" }; + struct property_entry entries[] = { + PROPERTY_ENTRY_STRING_ARRAY("small", str_array_small), + PROPERTY_ENTRY_STRING_ARRAY("big", str_array_big), + PROPERTY_ENTRY_STRING_ARRAY("small-empty", str_array_small_empty), + { } + }; + struct property_entry *copy; + const char * const *data_ptr; + + copy = property_entries_dup(entries); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, copy); + + KUNIT_EXPECT_TRUE(test, copy[0].is_inline); + KUNIT_EXPECT_STREQ(test, copy[0].value.str, "a"); + + KUNIT_EXPECT_FALSE(test, copy[1].is_inline); + data_ptr = copy[1].pointer; + KUNIT_EXPECT_STREQ(test, data_ptr[0], "b"); + KUNIT_EXPECT_STREQ(test, data_ptr[1], "c"); + + KUNIT_EXPECT_TRUE(test, copy[2].is_inline); + KUNIT_EXPECT_STREQ(test, copy[2].value.str, ""); + + property_entries_free(copy); +} + +/* Handling of reference properties */ +static void pe_test_reference(struct kunit *test) +{ + const struct software_node nodes[] = { + { .name = "1", }, + { .name = "2", }, + }; + + const struct software_node_ref_args refs[] = { + { + .node = &nodes[0], + .nargs = 0, + }, + { + .node = &nodes[1], + .nargs = 2, + .args = { 3, 4 }, + }, + }; + + const struct property_entry entries[] = { + PROPERTY_ENTRY_REF("ref-1", &nodes[0]), + PROPERTY_ENTRY_REF("ref-2", &nodes[1], 1, 2), + PROPERTY_ENTRY_REF_ARRAY("ref-3", refs), + { } + }; + + struct fwnode_handle *node; + struct fwnode_reference_args ref; + int error; + + error = software_node_register_nodes(nodes); + KUNIT_ASSERT_EQ(test, error, 0); + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + error = fwnode_property_get_reference_args(node, "ref-1", NULL, + 0, 0, &ref); + KUNIT_ASSERT_EQ(test, error, 0); + KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]); + KUNIT_EXPECT_EQ(test, ref.nargs, 0U); + + /* wrong index */ + error = fwnode_property_get_reference_args(node, "ref-1", NULL, + 0, 1, &ref); + KUNIT_EXPECT_NE(test, error, 0); + + error = fwnode_property_get_reference_args(node, "ref-2", NULL, + 1, 0, &ref); + KUNIT_ASSERT_EQ(test, error, 0); + KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]); + KUNIT_EXPECT_EQ(test, ref.nargs, 1U); + KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU); + + /* asking for more args, padded with zero data */ + error = fwnode_property_get_reference_args(node, "ref-2", NULL, + 3, 0, &ref); + KUNIT_ASSERT_EQ(test, error, 0); + KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]); + KUNIT_EXPECT_EQ(test, ref.nargs, 3U); + KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU); + KUNIT_EXPECT_EQ(test, ref.args[1], 2LLU); + KUNIT_EXPECT_EQ(test, ref.args[2], 0LLU); + + /* wrong index */ + error = fwnode_property_get_reference_args(node, "ref-2", NULL, + 2, 1, &ref); + KUNIT_EXPECT_NE(test, error, 0); + + /* array of references */ + error = fwnode_property_get_reference_args(node, "ref-3", NULL, + 0, 0, &ref); + KUNIT_ASSERT_EQ(test, error, 0); + KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]); + KUNIT_EXPECT_EQ(test, ref.nargs, 0U); + + /* second reference in the array */ + error = fwnode_property_get_reference_args(node, "ref-3", NULL, + 2, 1, &ref); + KUNIT_ASSERT_EQ(test, error, 0); + KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]); + KUNIT_EXPECT_EQ(test, ref.nargs, 2U); + KUNIT_EXPECT_EQ(test, ref.args[0], 3LLU); + KUNIT_EXPECT_EQ(test, ref.args[1], 4LLU); + + /* wrong index */ + error = fwnode_property_get_reference_args(node, "ref-1", NULL, + 0, 2, &ref); + KUNIT_EXPECT_NE(test, error, 0); + + fwnode_remove_software_node(node); + software_node_unregister_nodes(nodes); +} + +static struct kunit_case property_entry_test_cases[] = { + KUNIT_CASE(pe_test_uints), + KUNIT_CASE(pe_test_uint_arrays), + KUNIT_CASE(pe_test_strings), + KUNIT_CASE(pe_test_bool), + KUNIT_CASE(pe_test_move_inline_u8), + KUNIT_CASE(pe_test_move_inline_str), + KUNIT_CASE(pe_test_reference), + { } +}; + +static struct kunit_suite property_entry_test_suite = { + .name = "property-entry", + .test_cases = property_entry_test_cases, +}; + +kunit_test_suite(property_entry_test_suite);