* [jirislaby:devel 85/106] drivers/block/xen-blkfront.c:280:9: sparse: sparse: too long token expansion
@ 2021-03-29 11:25 kernel test robot
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From: kernel test robot @ 2021-03-29 11:25 UTC (permalink / raw)
To: kbuild
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CC: kbuild-all(a)lists.01.org
TO: Jiri Slaby <jslaby@suse.cz>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel
head: 2f9ca8269e51d1ab414bb0798c6c8ab3d705994d
commit: b830da515480dc8f56fce2d6825103bee0d3124e [85/106] include condition in the BUG_ON/WARN_ON output
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago
config: x86_64-randconfig-s021-20210329 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-277-gc089cd2d-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commit/?id=b830da515480dc8f56fce2d6825103bee0d3124e
git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git
git fetch --no-tags jirislaby devel
git checkout b830da515480dc8f56fce2d6825103bee0d3124e
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/block/xen-blkfront.c:280:9: sparse: sparse: too long token expansion
vim +280 drivers/block/xen-blkfront.c
4ab50af63d2eb5 Juergen Gross 2020-03-05 275
81f35161577236 Bob Liu 2015-11-14 276 static int get_id_from_freelist(struct blkfront_ring_info *rinfo)
9f27ee59503865 Jeremy Fitzhardinge 2007-07-17 277 {
81f35161577236 Bob Liu 2015-11-14 278 unsigned long free = rinfo->shadow_free;
81f35161577236 Bob Liu 2015-11-14 279
81f35161577236 Bob Liu 2015-11-14 @280 BUG_ON(free >= BLK_RING_SIZE(rinfo->dev_info));
81f35161577236 Bob Liu 2015-11-14 281 rinfo->shadow_free = rinfo->shadow[free].req.u.rw.id;
81f35161577236 Bob Liu 2015-11-14 282 rinfo->shadow[free].req.u.rw.id = 0x0fffffee; /* debug */
9f27ee59503865 Jeremy Fitzhardinge 2007-07-17 283 return free;
9f27ee59503865 Jeremy Fitzhardinge 2007-07-17 284 }
9f27ee59503865 Jeremy Fitzhardinge 2007-07-17 285
:::::: The code at line 280 was first introduced by commit
:::::: 81f351615772365d46ceeac3e50c9dd4e8f9dc89 xen/blkfront: separate per ring information out of device info
:::::: TO: Bob Liu <bob.liu@oracle.com>
:::::: CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-03-29 11:25 [jirislaby:devel 85/106] drivers/block/xen-blkfront.c:280:9: sparse: sparse: too long token expansion kernel test robot
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