From: kernel test robot <lkp@intel.com>
To: cgel.zte@gmail.com, stefanr@s5r6.in-berlin.de
Cc: kbuild-all@lists.01.org, linux1394-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org,
Minghao Chi <chi.minghao@zte.com.cn>,
Zeal Robot <zealci@zte.com.cn>
Subject: Re: [PATCH] drivers/firewire: use struct_size over open coded arithmetic
Date: Fri, 28 Jan 2022 22:54:14 +0800 [thread overview]
Message-ID: <202201282234.A43HZoSH-lkp@intel.com> (raw)
In-Reply-To: <20220128080336.1211525-1-chi.minghao@zte.com.cn>
Hi,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on ieee1394-linux1394/for-next]
[also build test ERROR on v5.17-rc1 next-20220128]
[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]
url: https://github.com/0day-ci/linux/commits/cgel-zte-gmail-com/drivers-firewire-use-struct_size-over-open-coded-arithmetic/20220128-160602
base: https://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git for-next
config: arm-randconfig-c002-20220124 (https://download.01.org/0day-ci/archive/20220128/202201282234.A43HZoSH-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/1567c3f747219c35e83d9c1f4ac3c3d36f447d90
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review cgel-zte-gmail-com/drivers-firewire-use-struct_size-over-open-coded-arithmetic/20220128-160602
git checkout 1567c3f747219c35e83d9c1f4ac3c3d36f447d90
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/device.h:29,
from drivers/firewire/core-transaction.c:10:
drivers/firewire/core-transaction.c: In function 'allocate_request':
>> include/linux/overflow.h:326:32: error: invalid type argument of '->' (have 'struct fw_request')
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~
drivers/firewire/core-transaction.c:780:27: note: in expansion of macro 'struct_size'
780 | request = kmalloc(struct_size(*request, data, length), GFP_ATOMIC);
| ^~~~~~~~~~~
In file included from include/linux/bits.h:22,
from include/linux/bitops.h:6,
from include/linux/kernel.h:12,
from include/asm-generic/bug.h:20,
from arch/arm/include/asm/bug.h:60,
from include/linux/bug.h:5,
from drivers/firewire/core-transaction.c:8:
include/linux/overflow.h:326:63: error: invalid type argument of '->' (have 'struct fw_request')
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~
include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
| ^
include/linux/compiler.h:240:51: note: in expansion of macro '__same_type'
240 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
| ^~~~~~~~~~~
include/linux/overflow.h:326:44: note: in expansion of macro '__must_be_array'
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~~~~~~~~~~~~~~
drivers/firewire/core-transaction.c:780:27: note: in expansion of macro 'struct_size'
780 | request = kmalloc(struct_size(*request, data, length), GFP_ATOMIC);
| ^~~~~~~~~~~
include/linux/overflow.h:326:63: error: invalid type argument of '->' (have 'struct fw_request')
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~
include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
| ^
include/linux/compiler.h:240:51: note: in expansion of macro '__same_type'
240 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
| ^~~~~~~~~~~
include/linux/overflow.h:326:44: note: in expansion of macro '__must_be_array'
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~~~~~~~~~~~~~~
drivers/firewire/core-transaction.c:780:27: note: in expansion of macro 'struct_size'
780 | request = kmalloc(struct_size(*request, data, length), GFP_ATOMIC);
| ^~~~~~~~~~~
include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant
16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
| ^
include/linux/compiler.h:240:33: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
240 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
| ^~~~~~~~~~~~~~~~~
include/linux/overflow.h:326:44: note: in expansion of macro '__must_be_array'
326 | sizeof(*(p)->member) + __must_be_array((p)->member),\
| ^~~~~~~~~~~~~~~
drivers/firewire/core-transaction.c:780:27: note: in expansion of macro 'struct_size'
780 | request = kmalloc(struct_size(*request, data, length), GFP_ATOMIC);
| ^~~~~~~~~~~
In file included from include/linux/device.h:29,
from drivers/firewire/core-transaction.c:10:
>> include/linux/overflow.h:327:28: error: invalid type argument of unary '*' (have 'struct fw_request')
327 | sizeof(*(p)))
| ^~~~
drivers/firewire/core-transaction.c:780:27: note: in expansion of macro 'struct_size'
780 | request = kmalloc(struct_size(*request, data, length), GFP_ATOMIC);
| ^~~~~~~~~~~
vim +326 include/linux/overflow.h
610b15c50e86eb1 Kees Cook 2018-05-07 312
610b15c50e86eb1 Kees Cook 2018-05-07 313 /**
610b15c50e86eb1 Kees Cook 2018-05-07 314 * struct_size() - Calculate size of structure with trailing array.
610b15c50e86eb1 Kees Cook 2018-05-07 315 * @p: Pointer to the structure.
610b15c50e86eb1 Kees Cook 2018-05-07 316 * @member: Name of the array member.
b19d57d0f3cc6f1 Gustavo A. R. Silva 2020-06-08 317 * @count: Number of elements in the array.
610b15c50e86eb1 Kees Cook 2018-05-07 318 *
610b15c50e86eb1 Kees Cook 2018-05-07 319 * Calculates size of memory needed for structure @p followed by an
b19d57d0f3cc6f1 Gustavo A. R. Silva 2020-06-08 320 * array of @count number of @member elements.
610b15c50e86eb1 Kees Cook 2018-05-07 321 *
610b15c50e86eb1 Kees Cook 2018-05-07 322 * Return: number of bytes needed or SIZE_MAX on overflow.
610b15c50e86eb1 Kees Cook 2018-05-07 323 */
b19d57d0f3cc6f1 Gustavo A. R. Silva 2020-06-08 324 #define struct_size(p, member, count) \
b19d57d0f3cc6f1 Gustavo A. R. Silva 2020-06-08 325 __ab_c_size(count, \
610b15c50e86eb1 Kees Cook 2018-05-07 @326 sizeof(*(p)->member) + __must_be_array((p)->member),\
610b15c50e86eb1 Kees Cook 2018-05-07 @327 sizeof(*(p)))
610b15c50e86eb1 Kees Cook 2018-05-07 328
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
prev parent reply other threads:[~2022-01-28 14:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-28 8:03 cgel.zte
2022-01-28 12:08 ` kernel test robot
2022-01-28 14:54 ` kernel test robot [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202201282234.A43HZoSH-lkp@intel.com \
--to=lkp@intel.com \
--cc=cgel.zte@gmail.com \
--cc=chi.minghao@zte.com.cn \
--cc=kbuild-all@lists.01.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux1394-devel@lists.sourceforge.net \
--cc=stefanr@s5r6.in-berlin.de \
--cc=zealci@zte.com.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome