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Date: Fri, 17 Jun 2022 06:57:52 +0800
From: kernel test robot <lkp@...el.com>
To: James Morse <james.morse@....com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [morse:mpam/snapshot/v5.18 66/146] include/linux/resctrl.h:286:20:
warning: shift count >= width of type
tree: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.18
head: bac90d25cbdee0fc233b9b1c47d5b6f44101a384
commit: 2881ac404cd937d1529d641acc4055fb14822de0 [66/146] fs/resctrl: Export the closid/rmid to user-space
config: hexagon-randconfig-r041-20220616 (https://download.01.org/0day-ci/archive/20220617/202206170631.gKMr1Rch-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f0e608de27b3d568000046eebf3712ab542979d6)
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://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=2881ac404cd937d1529d641acc4055fb14822de0
git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
git fetch --no-tags morse mpam/snapshot/v5.18
git checkout 2881ac404cd937d1529d641acc4055fb14822de0
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash fs/proc/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
include/linux/bitfield.h:129:30: note: expanded from macro 'FIELD_GET'
(typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)); \
^~~~~
In file included from fs/proc/base.c:97:
>> include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
include/linux/bitfield.h:129:30: note: expanded from macro 'FIELD_GET'
(typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)); \
^~~~~
In file included from fs/proc/base.c:97:
include/linux/resctrl.h:286:20: warning: shift count >= width of type [-Wshift-count-overflow]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:35:22: note: expanded from macro '__GENMASK'
(((~UL(0)) - (UL(1) << (l)) + 1) & \
^
include/linux/bitfield.h:129:50: note: expanded from macro 'FIELD_GET'
(typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)); \
~~~~~~~~~^~~~~~
include/linux/bitfield.h:45:38: note: expanded from macro '__bf_shf'
#define __bf_shf(x) (__builtin_ffsll(x) - 1)
^
In file included from fs/proc/base.c:97:
include/linux/resctrl.h:286:20: warning: shift count is negative [-Wshift-count-negative]
*rmid = FIELD_GET(RESCTRL_ID_RMID, id);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/resctrl.h:40:26: note: expanded from macro 'RESCTRL_ID_RMID'
#define RESCTRL_ID_RMID GENMASK(63, 32)
^
include/linux/bits.h:38:31: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:36:11: note: expanded from macro '__GENMASK'
(~UL(0) >> (BITS_PER_LONG - 1 - (h))))
^
include/linux/bitfield.h:129:50: note: expanded from macro 'FIELD_GET'
(typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)); \
~~~~~~~~~^~~~~~
include/linux/bitfield.h:45:38: note: expanded from macro '__bf_shf'
#define __bf_shf(x) (__builtin_ffsll(x) - 1)
^
22 warnings generated.
vim +286 include/linux/resctrl.h
269
270 /**
271 * __resctrl_id_decode() - unpack a known-good id that has been checked by
272 * resctrl_id_decode().
273 * @id: The value originally passed by user-space.
274 * @closid: Returned closid.
275 * @rmid: Returned rmid.
276 *
277 * Decodes the id field with no error checking. resctrl_id_decode() must have
278 * been used to check the id produces values that are in range and are
279 * allocated at the time of first use.
280 */
281 static inline void __resctrl_id_decode(u64 id, u32 *closid, u32 *rmid)
282 {
283 id ^= resctrl_id_obsfucation;
284
285 *closid = FIELD_GET(RESCTRL_ID_CLOSID, id);
> 286 *rmid = FIELD_GET(RESCTRL_ID_RMID, id);
287 }
288
--
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