From patchwork Wed Nov 23 14:48:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13053764 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0F58C433FE for ; Wed, 23 Nov 2022 14:49:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237411AbiKWOtY (ORCPT ); Wed, 23 Nov 2022 09:49:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237580AbiKWOtQ (ORCPT ); Wed, 23 Nov 2022 09:49:16 -0500 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 264306CA12; Wed, 23 Nov 2022 06:49:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669214954; x=1700750954; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=6CaDzmwprgLasCtAjji0nqGgQ6qOSWdVD2cInwSVDOE=; b=P5vnlveyz4nNZzzJ/MQgHJOvUpWYDjlnFsFExWsTsy6GUdHXkeKoAozL HHjGuw8LcB+1tJhgjjIyuA/Ga9cYu0WrUnYFKVe8nqL4sRrsqIoa/rK0H 5OvoW2/4SPLObauGFQ6GP7yk6CsgQQ7bhzNFDrvL2SiD40R8n9R5Njoqt z2/kONs+QEIJFJSWXI0C59K+/yh50Dd+isUyAjKk3dMqkSamd2ZE/hkUC HcuxWmZBxZ4US64jL6y9RH0m+LOjsjwRqUQJWAiXPKGU3cgk3QHRmFbNb IfDFRcWi3I2jh14eMRKClfpxMuBfTdSJbvGwatRrnH51rq/4qLP74AMlL g==; X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="376225212" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="376225212" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2022 06:48:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="635936973" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="635936973" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Nov 2022 06:48:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 80918128; Wed, 23 Nov 2022 16:49:03 +0200 (EET) From: Andy Shevchenko To: Jakob Koschel , Andy Shevchenko , Greg Kroah-Hartman , Mathias Nyman , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Kevin Cernekee , Mathias Nyman , Hans de Goede , Jani Nikula Subject: [PATCH v4 1/4] i915: Move list_count() to list.h for broader use Date: Wed, 23 Nov 2022 16:48:58 +0200 Message-Id: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Some of the existing users, and definitely will be new ones, want to count existing nodes in the list. Provide a generic API for that by moving code from i915 to list.h. Signed-off-by: Andy Shevchenko Acked-by: Jani Nikula Reviewed-by: Lucas De Marchi --- v4: fixed prototype when converting to static inline v3: added tag (Jani), changed to be static inline (Mike) v2: dropped the duplicate code in i915 (LKP) drivers/gpu/drm/i915/gt/intel_engine_cs.c | 13 +------------ include/linux/list.h | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index c33e0d72d670..b96c8217743c 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -2094,17 +2094,6 @@ static void print_request_ring(struct drm_printer *m, struct i915_request *rq) } } -static unsigned long list_count(struct list_head *list) -{ - struct list_head *pos; - unsigned long count = 0; - - list_for_each(pos, list) - count++; - - return count; -} - static unsigned long read_ul(void *p, size_t x) { return *(unsigned long *)(p + x); @@ -2279,7 +2268,7 @@ void intel_engine_dump(struct intel_engine_cs *engine, spin_lock_irqsave(&engine->sched_engine->lock, flags); engine_dump_active_requests(engine, m); - drm_printf(m, "\tOn hold?: %lu\n", + drm_printf(m, "\tOn hold?: %zu\n", list_count(&engine->sched_engine->hold)); spin_unlock_irqrestore(&engine->sched_engine->lock, flags); diff --git a/include/linux/list.h b/include/linux/list.h index 61762054b4be..632a298c7018 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -655,6 +655,21 @@ static inline void list_splice_tail_init(struct list_head *list, !list_is_head(pos, (head)); \ pos = n, n = pos->prev) +/** + * list_count - count nodes in the list + * @head: the head for your list. + */ +static inline size_t list_count(struct list_head *head) +{ + struct list_head *pos; + size_t count = 0; + + list_for_each(pos, head) + count++; + + return count; +} + /** * list_entry_is_head - test if the entry points to the head of the list * @pos: the type * to cursor From patchwork Wed Nov 23 14:48:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13053762 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D89C2C433FE for ; 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X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="376225198" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="376225198" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2022 06:48:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="635936969" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="635936969" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Nov 2022 06:48:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9096CB7; Wed, 23 Nov 2022 16:49:03 +0200 (EET) From: Andy Shevchenko To: Jakob Koschel , Andy Shevchenko , Greg Kroah-Hartman , Mathias Nyman , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Kevin Cernekee , Mathias Nyman , Hans de Goede Subject: [PATCH v4 2/4] usb: gadget: hid: Convert to use list_count() Date: Wed, 23 Nov 2022 16:48:59 +0200 Message-Id: <20221123144901.40493-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> References: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The list API now provides the list_count() to help with counting existing nodes in the list. Utilise it. Signed-off-by: Andy Shevchenko --- v4: no change v3: fixed typo in the commit message (Fabio) v2: no change drivers/usb/gadget/legacy/hid.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c index 1187ee4f316a..6196c3456e0b 100644 --- a/drivers/usb/gadget/legacy/hid.c +++ b/drivers/usb/gadget/legacy/hid.c @@ -133,14 +133,11 @@ static struct usb_configuration config_driver = { static int hid_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; - struct list_head *tmp; struct hidg_func_node *n = NULL, *m, *iter_n; struct f_hid_opts *hid_opts; - int status, funcs = 0; - - list_for_each(tmp, &hidg_func_list) - funcs++; + int status, funcs; + funcs = list_count(&hidg_func_list); if (!funcs) return -ENODEV; From patchwork Wed Nov 23 14:49:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13053763 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86DC1C4167D for ; Wed, 23 Nov 2022 14:49:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237556AbiKWOtV (ORCPT ); Wed, 23 Nov 2022 09:49:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237549AbiKWOtP (ORCPT ); Wed, 23 Nov 2022 09:49:15 -0500 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36A0B70188; Wed, 23 Nov 2022 06:49:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669214952; x=1700750952; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yNdh/hk4prTZOSg8R5rGTM68n79WKoKNAojMOq62B0c=; b=Kvg0AP4UY358dpDgJDZEWma9ql/q39sFfEyD+KkhQS7PbE0b1+trDHs/ Yr8a/t9Xibxrzs36qRToPA0W8FLgKv0wmXR3k99r+6fsBQtwlLjw7JFpb UR/XUXyZrKH+C/w+/DFbE0viosSOpHinhXQ2vcxVNDjTHRa5rGKUf1htR xaNqeJpz+mSBwioyAgqgQ4qO5P3qP4RPfmpsHe5JJeA+jEg5rqNZvJaTV 1m2ZLThQwdWDDtQP8unRU6OZJlpjK0oLvGmSrzzzM4cGwlDPplJp/3Kaa J96sIeJ51qg0laE05HUXpUTJIhV70DZB5HGcSAWAg/C0KH0LTsdye2mY6 g==; X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="376225206" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="376225206" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2022 06:48:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="635936971" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="635936971" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Nov 2022 06:48:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id A0A95184; Wed, 23 Nov 2022 16:49:03 +0200 (EET) From: Andy Shevchenko To: Jakob Koschel , Andy Shevchenko , Greg Kroah-Hartman , Mathias Nyman , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Kevin Cernekee , Mathias Nyman , Hans de Goede Subject: [PATCH v4 3/4] usb: gadget: udc: bcm63xx: Convert to use list_count() Date: Wed, 23 Nov 2022 16:49:00 +0200 Message-Id: <20221123144901.40493-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> References: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The list API now provides the list_count() to help with counting existing nodes in the list. Utilise it. Signed-off-by: Andy Shevchenko --- v4: no change v3: no change v2: no change drivers/usb/gadget/udc/bcm63xx_udc.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c index 2cdb07905bde..0762e49e85f8 100644 --- a/drivers/usb/gadget/udc/bcm63xx_udc.c +++ b/drivers/usb/gadget/udc/bcm63xx_udc.c @@ -2172,7 +2172,6 @@ static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p) for (ch_idx = 0; ch_idx < BCM63XX_NUM_IUDMA; ch_idx++) { struct iudma_ch *iudma = &udc->iudma[ch_idx]; - struct list_head *pos; seq_printf(s, "IUDMA channel %d -- ", ch_idx); switch (iudma_defaults[ch_idx].ep_type) { @@ -2205,14 +2204,10 @@ static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p) seq_printf(s, " desc: %d/%d used", iudma->n_bds_used, iudma->n_bds); - if (iudma->bep) { - i = 0; - list_for_each(pos, &iudma->bep->queue) - i++; - seq_printf(s, "; %d queued\n", i); - } else { + if (iudma->bep) + seq_printf(s, "; %zu queued\n", list_count(&iudma->bep->queue)); + else seq_printf(s, "\n"); - } for (i = 0; i < iudma->n_bds; i++) { struct bcm_enet_desc *d = &iudma->bd_ring[i]; From patchwork Wed Nov 23 14:49:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13053761 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1746AC433FE for ; Wed, 23 Nov 2022 14:48:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237270AbiKWOs4 (ORCPT ); Wed, 23 Nov 2022 09:48:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236447AbiKWOsz (ORCPT ); Wed, 23 Nov 2022 09:48:55 -0500 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 146626DCD3; Wed, 23 Nov 2022 06:48:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669214934; x=1700750934; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=pgt4N39lUyQv8Pv+snAd9Kisc2GhpoYqnvOX9T/Og/g=; b=XFhha/N/4Phk105vFiRUe2SNqGNuMxCLetT2tDEKEMTkyE1a7ER5UqDl 3gmp6E+tmY9yN8SYnXuYVgZZ+GyJgbh2aO4KfJSmiPo2w+xe1FEuaduvQ CtNyDaXg4PWIxR882WxOL4tr1Rb+fma6gI0S2t/kFrkAn2sN/VqVBbcLL BB5qzvKM0A4GebLSAIZSXsBxWI7WOsiUzkEwYWvd25XMxvg6m8b6fNsle aMp1miY13ktIr739llA+Tx+F0l7WWk7obCTM9c2dOad8ng6Gk0yCqQvJp gUOxfjdqN7+aRjvLYj7/xP41ztYwPedAZeHlo2P0KW+OkWvu8ANtVMr78 w==; X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="315231755" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="315231755" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2022 06:48:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="970883660" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="970883660" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 23 Nov 2022 06:48:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id B03FC24A; Wed, 23 Nov 2022 16:49:03 +0200 (EET) From: Andy Shevchenko To: Jakob Koschel , Andy Shevchenko , Greg Kroah-Hartman , Mathias Nyman , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Kevin Cernekee , Mathias Nyman , Hans de Goede Subject: [PATCH v4 4/4] xhci: Convert to use list_count() Date: Wed, 23 Nov 2022 16:49:01 +0200 Message-Id: <20221123144901.40493-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> References: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The list API now provides the list_count() to help with counting existing nodes in the list. Utilise it. Signed-off-by: Andy Shevchenko Acked-by: Mathias Nyman --- v4: added tag (Mathias) v3: no change v2: no change drivers/usb/host/xhci-ring.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index ad81e9a508b1..817c31e3b0c8 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2532,7 +2532,6 @@ static int handle_tx_event(struct xhci_hcd *xhci, union xhci_trb *ep_trb; int status = -EINPROGRESS; struct xhci_ep_ctx *ep_ctx; - struct list_head *tmp; u32 trb_comp_code; int td_num = 0; bool handling_skipped_tds = false; @@ -2580,10 +2579,8 @@ static int handle_tx_event(struct xhci_hcd *xhci, } /* Count current td numbers if ep->skip is set */ - if (ep->skip) { - list_for_each(tmp, &ep_ring->td_list) - td_num++; - } + if (ep->skip) + td_num += list_count(&ep_ring->td_list); /* Look for common error cases */ switch (trb_comp_code) {