From patchwork Mon Mar 27 10:12:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linyu Yuan X-Patchwork-Id: 13188996 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 C416BC76195 for ; Mon, 27 Mar 2023 10:12:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233344AbjC0KMj (ORCPT ); Mon, 27 Mar 2023 06:12:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233494AbjC0KMe (ORCPT ); Mon, 27 Mar 2023 06:12:34 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 405E14C3E for ; Mon, 27 Mar 2023 03:12:33 -0700 (PDT) Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 32RA8dVX021181; Mon, 27 Mar 2023 10:12:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=JSqrMjS14S2i4GlHYQHMHK+M0qIxVljIqmjrq9ZgpMA=; b=U27lypUQr2dF8lArqUQWididJpDijAKXT4pbYH3jLih531C7wZIBgss0WruOC31A6vlM LHtzFaXYxK6J95VYB3qo2PpSnmuTbD3fqN/q8k+xkoUnGcfXZppwjlq2MhM8bKT3CplA bGtUTBtXW5MHk0oeYpO8KhWP36ep+6o8GtCe70I1NoDEiUh+CA9zRuFevJ3GxZeMSOqq MdRUY71d6+r7t3aI6EKE8dd974xWIsyQatzgL3nrsuOcatg1cRp04MLjg6QC76/nkBbJ /lIAFC3B41zfcScezO5CprhU38fELeLb2iJtIzPiWkFI+Zw67goZPMKc+QYoXMvgkcYO Hg== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3pk83t05qv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Mar 2023 10:12:31 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 32RACUSJ007002 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Mar 2023 10:12:30 GMT Received: from linyyuan-gv.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Mon, 27 Mar 2023 03:12:29 -0700 From: Linyu Yuan To: Greg Kroah-Hartman CC: , Linyu Yuan Subject: [PATCH v3 2/6] usb: gadget: f_fs: add more function with struct ffs_data *ffs parameter Date: Mon, 27 Mar 2023 18:12:16 +0800 Message-ID: <1679911940-4727-2-git-send-email-quic_linyyuan@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1679911940-4727-1-git-send-email-quic_linyyuan@quicinc.com> References: <1679911940-4727-1-git-send-email-quic_linyyuan@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: mz9k78vnFaVZsGmDLlilg27XpcMYHdAX X-Proofpoint-GUID: mz9k78vnFaVZsGmDLlilg27XpcMYHdAX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-24_11,2023-03-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 bulkscore=0 mlxlogscore=950 spamscore=0 phishscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303270081 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In order to show ffs->dev_name in debug message which is more readable when multiple f_fs instance exist, it need to add struct ffs_data *ffs parameter for several functions. Signed-off-by: Linyu Yuan --- v3: fix review comment, move struct ffs_desc_helper change to single patch v2: split to several changes according to v1 comments v1: https://lore.kernel.org/linux-usb/1679481369-30094-1-git-send-email-quic_linyyuan@quicinc.com/ drivers/usb/gadget/function/f_fs.c | 66 +++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 33 deletions(-) diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 8830847..32e66f01 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -260,7 +260,7 @@ static void ffs_closed(struct ffs_data *ffs); static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock) __attribute__((warn_unused_result, nonnull)); -static char *ffs_prepare_buffer(const char __user *buf, size_t len) +static char *ffs_prepare_buffer(struct ffs_data *ffs, const char __user *buf, size_t len) __attribute__((warn_unused_result, nonnull)); @@ -354,7 +354,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf, break; } - data = ffs_prepare_buffer(buf, len); + data = ffs_prepare_buffer(ffs, buf, len); if (IS_ERR(data)) { ret = PTR_ERR(data); break; @@ -426,7 +426,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf, spin_unlock_irq(&ffs->ev.waitq.lock); - data = ffs_prepare_buffer(buf, len); + data = ffs_prepare_buffer(ffs, buf, len); if (IS_ERR(data)) { ret = PTR_ERR(data); break; @@ -713,7 +713,8 @@ static void ffs_epfile_io_complete(struct usb_ep *_ep, struct usb_request *req) complete(&io_data->done); } -static ssize_t ffs_copy_to_iter(void *data, int data_len, struct iov_iter *iter) +static ssize_t ffs_copy_to_iter(struct ffs_data *ffs, void *data, int data_len, + struct iov_iter *iter) { ssize_t ret = copy_to_iter(data, data_len, iter); if (ret == data_len) @@ -824,7 +825,7 @@ static void ffs_user_copy_worker(struct work_struct *work) if (io_data->read && ret > 0) { kthread_use_mm(io_data->mm); - ret = ffs_copy_to_iter(io_data->buf, ret, &io_data->data); + ret = ffs_copy_to_iter(io_data->ffs, io_data->buf, ret, &io_data->data); kthread_unuse_mm(io_data->mm); } @@ -1984,16 +1985,16 @@ enum ffs_os_desc_type { FFS_OS_DESC, FFS_OS_DESC_EXT_COMPAT, FFS_OS_DESC_EXT_PROP }; -typedef int (*ffs_entity_callback)(enum ffs_entity_type entity, +typedef int (*ffs_entity_callback)(struct ffs_data *ffs, enum ffs_entity_type entity, u8 *valuep, struct usb_descriptor_header *desc, void *priv); -typedef int (*ffs_os_desc_callback)(enum ffs_os_desc_type entity, +typedef int (*ffs_os_desc_callback)(struct ffs_data *ffs, enum ffs_os_desc_type entity, struct usb_os_desc_header *h, void *data, unsigned len, void *priv); -static int __must_check ffs_do_single_desc(char *data, unsigned len, +static int __must_check ffs_do_single_desc(struct ffs_data *ffs, char *data, unsigned len, ffs_entity_callback entity, void *priv, int *current_class) { @@ -2023,7 +2024,7 @@ static int __must_check ffs_do_single_desc(char *data, unsigned len, pr_vdebug("invalid entity's value\n"); \ return -EINVAL; \ } \ - ret = entity(FFS_ ##type, &val, _ds, priv); \ + ret = entity(ffs, FFS_ ##type, &val, _ds, priv); \ if (ret < 0) { \ pr_debug("entity " #type "(%02x); ret = %d\n", \ (val), ret); \ @@ -2132,7 +2133,7 @@ static int __must_check ffs_do_single_desc(char *data, unsigned len, return length; } -static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, +static int __must_check ffs_do_descs(struct ffs_data *ffs, unsigned count, char *data, unsigned len, ffs_entity_callback entity, void *priv) { const unsigned _len = len; @@ -2146,7 +2147,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, data = NULL; /* Record "descriptor" entity */ - ret = entity(FFS_DESCRIPTOR, (u8 *)num, (void *)data, priv); + ret = entity(ffs, FFS_DESCRIPTOR, (u8 *)num, (void *)data, priv); if (ret < 0) { pr_debug("entity DESCRIPTOR(%02lx); ret = %d\n", num, ret); @@ -2156,7 +2157,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, if (!data) return _len - len; - ret = ffs_do_single_desc(data, len, entity, priv, + ret = ffs_do_single_desc(ffs, data, len, entity, priv, ¤t_class); if (ret < 0) { pr_debug("%s returns %d\n", __func__, ret); @@ -2169,7 +2170,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, } } -static int __ffs_data_do_entity(enum ffs_entity_type type, +static int __ffs_data_do_entity(struct ffs_data *ffs, enum ffs_entity_type type, u8 *valuep, struct usb_descriptor_header *desc, void *priv) { @@ -2217,7 +2218,7 @@ static int __ffs_data_do_entity(enum ffs_entity_type type, return 0; } -static int __ffs_do_os_desc_header(enum ffs_os_desc_type *next_type, +static int __ffs_do_os_desc_header(struct ffs_data *ffs, enum ffs_os_desc_type *next_type, struct usb_os_desc_header *desc) { u16 bcd_version = le16_to_cpu(desc->bcdVersion); @@ -2250,7 +2251,7 @@ static int __ffs_do_os_desc_header(enum ffs_os_desc_type *next_type, * Process all extended compatibility/extended property descriptors * of a feature descriptor */ -static int __must_check ffs_do_single_os_desc(char *data, unsigned len, +static int __must_check ffs_do_single_os_desc(struct ffs_data *ffs, char *data, unsigned len, enum ffs_os_desc_type type, u16 feature_count, ffs_os_desc_callback entity, @@ -2262,7 +2263,7 @@ static int __must_check ffs_do_single_os_desc(char *data, unsigned len, /* loop over all ext compat/ext prop descriptors */ while (feature_count--) { - ret = entity(type, h, data, len, priv); + ret = entity(ffs, type, h, data, len, priv); if (ret < 0) { pr_debug("bad OS descriptor, type: %d\n", type); return ret; @@ -2274,7 +2275,7 @@ static int __must_check ffs_do_single_os_desc(char *data, unsigned len, } /* Process a number of complete Feature Descriptors (Ext Compat or Ext Prop) */ -static int __must_check ffs_do_os_descs(unsigned count, +static int __must_check ffs_do_os_descs(struct ffs_data *ffs, unsigned count, char *data, unsigned len, ffs_os_desc_callback entity, void *priv) { @@ -2300,7 +2301,7 @@ static int __must_check ffs_do_os_descs(unsigned count, if (le32_to_cpu(desc->dwLength) > len) return -EINVAL; - ret = __ffs_do_os_desc_header(&type, desc); + ret = __ffs_do_os_desc_header(ffs, &type, desc); if (ret < 0) { pr_debug("entity OS_DESCRIPTOR(%02lx); ret = %d\n", num, ret); @@ -2320,7 +2321,7 @@ static int __must_check ffs_do_os_descs(unsigned count, * Process all function/property descriptors * of this Feature Descriptor */ - ret = ffs_do_single_os_desc(data, len, type, + ret = ffs_do_single_os_desc(ffs, data, len, type, feature_count, entity, priv, desc); if (ret < 0) { pr_debug("%s returns %d\n", __func__, ret); @@ -2336,11 +2337,10 @@ static int __must_check ffs_do_os_descs(unsigned count, /* * Validate contents of the buffer from userspace related to OS descriptors. */ -static int __ffs_data_do_os_desc(enum ffs_os_desc_type type, +static int __ffs_data_do_os_desc(struct ffs_data *ffs, enum ffs_os_desc_type type, struct usb_os_desc_header *h, void *data, unsigned len, void *priv) { - struct ffs_data *ffs = priv; u8 length; switch (type) { @@ -2491,7 +2491,7 @@ static int __ffs_data_got_descs(struct ffs_data *ffs, continue; helper.interfaces_count = 0; helper.eps_count = 0; - ret = ffs_do_descs(counts[i], data, len, + ret = ffs_do_descs(ffs, counts[i], data, len, __ffs_data_do_entity, &helper); if (ret < 0) goto error; @@ -2512,8 +2512,8 @@ static int __ffs_data_got_descs(struct ffs_data *ffs, len -= ret; } if (os_descs_count) { - ret = ffs_do_os_descs(os_descs_count, data, len, - __ffs_data_do_os_desc, ffs); + ret = ffs_do_os_descs(ffs, os_descs_count, data, len, + __ffs_data_do_os_desc, NULL); if (ret < 0) goto error; data += ret; @@ -2763,7 +2763,7 @@ static int ffs_ep_addr2idx(struct ffs_data *ffs, u8 endpoint_address) return -ENOENT; } -static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep, +static int __ffs_func_bind_do_descs(struct ffs_data *ffs, enum ffs_entity_type type, u8 *valuep, struct usb_descriptor_header *desc, void *priv) { @@ -2863,7 +2863,7 @@ static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep, return 0; } -static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep, +static int __ffs_func_bind_do_nums(struct ffs_data *ffs, enum ffs_entity_type type, u8 *valuep, struct usb_descriptor_header *desc, void *priv) { @@ -2918,7 +2918,7 @@ static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep, return 0; } -static int __ffs_func_bind_do_os_desc(enum ffs_os_desc_type type, +static int __ffs_func_bind_do_os_desc(struct ffs_data *ffs, enum ffs_os_desc_type type, struct usb_os_desc_header *h, void *data, unsigned len, void *priv) { @@ -3119,7 +3119,7 @@ static int _ffs_func_bind(struct usb_configuration *c, */ if (full) { func->function.fs_descriptors = vla_ptr(vlabuf, d, fs_descs); - fs_len = ffs_do_descs(ffs->fs_descs_count, + fs_len = ffs_do_descs(ffs, ffs->fs_descs_count, vla_ptr(vlabuf, d, raw_descs), d_raw_descs__sz, __ffs_func_bind_do_descs, func); @@ -3133,7 +3133,7 @@ static int _ffs_func_bind(struct usb_configuration *c, if (high) { func->function.hs_descriptors = vla_ptr(vlabuf, d, hs_descs); - hs_len = ffs_do_descs(ffs->hs_descs_count, + hs_len = ffs_do_descs(ffs, ffs->hs_descs_count, vla_ptr(vlabuf, d, raw_descs) + fs_len, d_raw_descs__sz - fs_len, __ffs_func_bind_do_descs, func); @@ -3148,7 +3148,7 @@ static int _ffs_func_bind(struct usb_configuration *c, if (super) { func->function.ss_descriptors = func->function.ssp_descriptors = vla_ptr(vlabuf, d, ss_descs); - ss_len = ffs_do_descs(ffs->ss_descs_count, + ss_len = ffs_do_descs(ffs, ffs->ss_descs_count, vla_ptr(vlabuf, d, raw_descs) + fs_len + hs_len, d_raw_descs__sz - fs_len - hs_len, __ffs_func_bind_do_descs, func); @@ -3165,7 +3165,7 @@ static int _ffs_func_bind(struct usb_configuration *c, * endpoint numbers rewriting. We can do that in one go * now. */ - ret = ffs_do_descs(ffs->fs_descs_count + + ret = ffs_do_descs(ffs, ffs->fs_descs_count + (high ? ffs->hs_descs_count : 0) + (super ? ffs->ss_descs_count : 0), vla_ptr(vlabuf, d, raw_descs), d_raw_descs__sz, @@ -3185,7 +3185,7 @@ static int _ffs_func_bind(struct usb_configuration *c, vla_ptr(vlabuf, d, ext_compat) + i * 16; INIT_LIST_HEAD(&desc->ext_prop); } - ret = ffs_do_os_descs(ffs->ms_os_descs_count, + ret = ffs_do_os_descs(ffs, ffs->ms_os_descs_count, vla_ptr(vlabuf, d, raw_descs) + fs_len + hs_len + ss_len, d_raw_descs__sz - fs_len - hs_len - @@ -3781,7 +3781,7 @@ static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock) : mutex_lock_interruptible(mutex); } -static char *ffs_prepare_buffer(const char __user *buf, size_t len) +static char *ffs_prepare_buffer(struct ffs_data *ffs, const char __user *buf, size_t len) { char *data;