From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com, Dan Carpenter <error27@gmail.com>
Subject: Re: [PATCH v2 2/8] media: videobuf2: Make bufs array dynamic allocated
Date: Fri, 24 Mar 2023 01:52:32 +0800 [thread overview]
Message-ID: <202303240148.lKRnUqW9-lkp@intel.com> (raw)
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20230321102855.346732-3-benjamin.gaignard@collabora.com>
References: <20230321102855.346732-3-benjamin.gaignard@collabora.com>
TO: Benjamin Gaignard <benjamin.gaignard@collabora.com>
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Hi Benjamin,
I love your patch! Perhaps something to improve:
[auto build test WARNING on media-tree/master]
[also build test WARNING on linus/master v6.3-rc3 next-20230323]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Access-vb2_queue-bufs-array-through-helper-functions/20230321-183154
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230321102855.346732-3-benjamin.gaignard%40collabora.com
patch subject: [PATCH v2 2/8] media: videobuf2: Make bufs array dynamic allocated
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: arm64-randconfig-m041-20230319 (https://download.01.org/0day-ci/archive/20230324/202303240148.lKRnUqW9-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Link: https://lore.kernel.org/r/202303240148.lKRnUqW9-lkp@intel.com/
smatch warnings:
include/media/videobuf2-core.h:1272 vb2_queue_add_buffer() warn: sleeping in atomic context
drivers/media/common/videobuf2/videobuf2-core.c:2456 vb2_core_queue_init() warn: Please consider using kcalloc instead of kmalloc_array
vim +1272 include/media/videobuf2-core.h
3dd8c097541794 Ezequiel Garcia 2019-06-10 1257
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1258 /**
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1259 * vb2_queue_add_buffer() - add a buffer to a queue
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1260 * @q: pointer to &struct vb2_queue with videobuf2 queue.
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1261 * @vb: pointer to &struct vb2_buffer to be added to the queue.
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1262 */
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1263 static inline bool vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb)
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1264 {
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1265 bool ret = false;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1266
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1267 spin_lock(&q->bufs_lock);
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1268
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1269 if (vb->index >= q->max_num_bufs) {
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1270 struct vb2_buffer **tmp;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1271
487d3f14d12ecf Benjamin Gaignard 2023-03-21 @1272 tmp = krealloc_array(q->bufs, q->max_num_bufs * 2, sizeof(*q->bufs), GFP_KERNEL);
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1273 if (!tmp)
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1274 goto realloc_failed;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1275
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1276 q->max_num_bufs *= 2;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1277 q->bufs = tmp;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1278 }
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1279
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1280 if (vb->index < q->max_num_bufs) {
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1281 q->bufs[vb->index] = vb;
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1282 ret = true;
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1283 }
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1284
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1285 realloc_failed:
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1286 spin_unlock(&q->bufs_lock);
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1287
487d3f14d12ecf Benjamin Gaignard 2023-03-21 1288 return ret;
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1289 }
625d46c1c1fe8e Benjamin Gaignard 2023-03-21 1290
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
next reply other threads:[~2023-03-23 17:52 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-23 17:52 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-03-21 10:28 [PATCH v2 0/8] Add DELETE_BUF ioctl Benjamin Gaignard
2023-03-21 10:28 ` [PATCH v2 2/8] media: videobuf2: Make bufs array dynamic allocated Benjamin Gaignard
2023-03-21 10:28 ` Benjamin Gaignard
2023-03-21 10:28 ` Benjamin Gaignard
2023-03-21 18:16 ` Laurent Pinchart
2023-03-21 18:16 ` Laurent Pinchart
2023-03-21 18:16 ` Laurent Pinchart
2023-03-22 8:10 ` Benjamin Gaignard
2023-05-19 10:04 ` Tomasz Figa
2023-05-19 10:04 ` Tomasz Figa
2023-05-19 10:04 ` Tomasz Figa
2023-05-22 12:27 ` Benjamin Gaignard
2023-03-24 5:01 ` Dan Carpenter
2023-03-24 5:01 ` Dan Carpenter
2023-03-24 5:01 ` Dan Carpenter
2023-03-24 8:11 ` Benjamin Gaignard
2023-03-24 8:11 ` Benjamin Gaignard
2023-03-24 8:11 ` Benjamin Gaignard
2023-03-24 8:31 ` Hans Verkuil
2023-03-24 8:31 ` Hans Verkuil
2023-03-24 8:31 ` Hans Verkuil
2023-03-24 8:48 ` Laurent Pinchart
2023-03-24 8:48 ` Laurent Pinchart
2023-03-24 8:48 ` Laurent Pinchart
2023-03-24 8:52 ` Hans Verkuil
2023-03-24 8:52 ` Hans Verkuil
2023-03-24 8:52 ` Hans Verkuil
2023-03-24 8:56 ` Benjamin Gaignard
2023-03-24 8:56 ` Benjamin Gaignard
2023-03-24 8:56 ` Benjamin Gaignard
2023-05-19 10:00 ` Tomasz Figa
2023-05-19 10:00 ` Tomasz Figa
2023-05-19 10:00 ` Tomasz Figa
2023-03-24 13:02 ` Dmitry Osipenko
2023-03-24 13:02 ` Dmitry Osipenko
2023-03-24 13:02 ` Dmitry Osipenko
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