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Date: Fri, 28 Jul 2023 15:15:42 +0800
From: kernel test robot <lkp@...el.com>
To: David Laight <David.Laight@...lab.com>,
"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
'Andy Shevchenko' <andriy.shevchenko@...ux.intel.com>,
'Andrew Morton' <akpm@...ux-foundation.org>,
"'Matthew Wilcox (Oracle)'" <willy@...radead.org>,
'Christoph Hellwig' <hch@...radead.org>,
"'Jason A. Donenfeld'" <Jason@...c4.com>
Cc: oe-kbuild-all@...ts.linux.dev,
Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [PATCH next resend 5/5] minmax: Relax check to allow comparison
between int and small unsigned constants.
Hi David,
kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v6.5-rc3 next-20230727]
[cannot apply to next-20230725]
[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/David-Laight/minmax-Allow-min-max-clamp-if-the-arguments-have-the-same-signedness/20230725-204940
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/48c2cd0407f14859919d4fcbe526234a%40AcuMS.aculab.com
patch subject: [PATCH next resend 5/5] minmax: Relax check to allow comparison between int and small unsigned constants.
config: microblaze-randconfig-r092-20230725 (https://download.01.org/0day-ci/archive/20230728/202307281520.WNoM3bxU-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230728/202307281520.WNoM3bxU-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307281520.WNoM3bxU-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: bad constant expression type
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page
>> crypto/skcipher.c:80:16: sparse: int
crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>):
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page
>> crypto/skcipher.c:80:16: sparse: int
crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>):
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page
>> crypto/skcipher.c:80:16: sparse: int
crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>):
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start
>> crypto/skcipher.c:80:16: sparse: int
>> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=):
>> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page
>> crypto/skcipher.c:80:16: sparse: int
crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>):
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297
crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298
--
drivers/gpu/drm/drm_modes.c: note: in included file (through include/drm/drm_plane.h, include/drm/drm_crtc.h):
include/drm/drm_color_mgmt.h:52:16: sparse: sparse: bad integer constant expression
include/drm/drm_color_mgmt.h:52:16: sparse: sparse: static assertion failed: "clamp() low limit (typeof(val))(0) greater than high limit (typeof(val))(max)"
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=):
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *bpp_end_ptr
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: bad constant expression type
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=):
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] bpp_end_ptr
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=):
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] refresh_end_ptr
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=):
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] bpp_end_ptr
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=):
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] refresh_end_ptr
>> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int
drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>):
drivers/gpu/drm/drm_modes.c:2474:29: sparse: bad type __UNIQUE_ID___x334
drivers/gpu/drm/drm_modes.c:2474:29: sparse: bad type __UNIQUE_ID___y335
--
>> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=):
>> net/ceph/osdmap.c:1773:54: sparse: void *
>> net/ceph/osdmap.c:1773:54: sparse: int
>> net/ceph/osdmap.c:1773:54: sparse: sparse: bad constant expression type
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2000:46: sparse: void *
net/ceph/osdmap.c:2000:46: sparse: int
net/ceph/osdmap.c:2000:46: sparse: sparse: bad constant expression type
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2007:57: sparse: void *
net/ceph/osdmap.c:2007:57: sparse: int
net/ceph/osdmap.c:2007:57: sparse: sparse: bad constant expression type
>> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=):
>> net/ceph/osdmap.c:1773:54: sparse: void *
>> net/ceph/osdmap.c:1773:54: sparse: int
>> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=):
>> net/ceph/osdmap.c:1773:54: sparse: void *end
>> net/ceph/osdmap.c:1773:54: sparse: int
>> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=):
>> net/ceph/osdmap.c:1773:54: sparse: void *
>> net/ceph/osdmap.c:1773:54: sparse: int
>> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=):
>> net/ceph/osdmap.c:1773:54: sparse: void *end
>> net/ceph/osdmap.c:1773:54: sparse: int
net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (<):
net/ceph/osdmap.c:1773:54: sparse: bad type __UNIQUE_ID___x318
net/ceph/osdmap.c:1773:54: sparse: bad type __UNIQUE_ID___y319
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2000:46: sparse: void *
net/ceph/osdmap.c:2000:46: sparse: int
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2000:46: sparse: void *end
net/ceph/osdmap.c:2000:46: sparse: int
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2000:46: sparse: void *
net/ceph/osdmap.c:2000:46: sparse: int
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2000:46: sparse: void *end
net/ceph/osdmap.c:2000:46: sparse: int
net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (<):
net/ceph/osdmap.c:2000:46: sparse: bad type __UNIQUE_ID___x322
net/ceph/osdmap.c:2000:46: sparse: bad type __UNIQUE_ID___y323
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2007:57: sparse: void *
net/ceph/osdmap.c:2007:57: sparse: int
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2007:57: sparse: void *end
net/ceph/osdmap.c:2007:57: sparse: int
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2007:57: sparse: void *
net/ceph/osdmap.c:2007:57: sparse: int
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=):
net/ceph/osdmap.c:2007:57: sparse: void *end
net/ceph/osdmap.c:2007:57: sparse: int
net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (<):
net/ceph/osdmap.c:2007:57: sparse: bad type __UNIQUE_ID___x324
net/ceph/osdmap.c:2007:57: sparse: bad type __UNIQUE_ID___y325
--
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=):
>> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end
>> lib/lzo/lzo1x_compress.c:53:54: sparse: int
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: bad constant expression type
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=):
>> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end
>> lib/lzo/lzo1x_compress.c:53:54: sparse: int
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=):
>> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *
>> lib/lzo/lzo1x_compress.c:53:54: sparse: int
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=):
>> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end
>> lib/lzo/lzo1x_compress.c:53:54: sparse: int
>> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=):
>> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *
>> lib/lzo/lzo1x_compress.c:53:54: sparse: int
lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (<):
lib/lzo/lzo1x_compress.c:53:54: sparse: bad type __UNIQUE_ID___x182
lib/lzo/lzo1x_compress.c:53:54: sparse: bad type __UNIQUE_ID___y183
vim +80 crypto/skcipher.c
b286d8b1a69066 Herbert Xu 2016-11-22 72
b286d8b1a69066 Herbert Xu 2016-11-22 73 /* Get a spot of the specified length that does not straddle a page.
b286d8b1a69066 Herbert Xu 2016-11-22 74 * The caller needs to ensure that there is enough space for this operation.
b286d8b1a69066 Herbert Xu 2016-11-22 75 */
b286d8b1a69066 Herbert Xu 2016-11-22 76 static inline u8 *skcipher_get_spot(u8 *start, unsigned int len)
b286d8b1a69066 Herbert Xu 2016-11-22 77 {
b286d8b1a69066 Herbert Xu 2016-11-22 78 u8 *end_page = (u8 *)(((unsigned long)(start + len - 1)) & PAGE_MASK);
b286d8b1a69066 Herbert Xu 2016-11-22 79
b286d8b1a69066 Herbert Xu 2016-11-22 @80 return max(start, end_page);
b286d8b1a69066 Herbert Xu 2016-11-22 81 }
b286d8b1a69066 Herbert Xu 2016-11-22 82
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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