| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202210261357.QYjodqEQ-lkp@intel.com>
Date: Wed, 26 Oct 2022 13:35:41 +0800
From: kernel test robot <lkp@...el.com>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev,
Peter Zijlstra <peterz@...radead.org>,
John Stultz <john.stultz@...aro.org>,
Eric Dumazet <edumazet@...gle.com>,
Thomas Gleixner <tglx@...utronix.de>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
linux-pm@...r.kernel.org, Arjan van de Ven <arjan@...radead.org>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Rik van Riel <riel@...hat.com>,
Anna-Maria Behnsen <anna-maria@...utronix.de>
Subject: Re: [PATCH v3 14/17] timer: Implement the hierarchical pull model
Hi Anna-Maria,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tip/timers/core]
[also build test WARNING on powerpc/next tip/x86/core linus/master tj-wq/for-next v6.1-rc2]
[cannot apply to tip/timers/nohz next-20221025]
[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/Anna-Maria-Behnsen/timer-Move-from-a-push-remote-at-enqueue-to-a-pull-at-expiry-model/20221025-220106
patch link: https://lore.kernel.org/r/20221025135850.51044-15-anna-maria%40linutronix.de
patch subject: [PATCH v3 14/17] timer: Implement the hierarchical pull model
config: x86_64-rhel-8.3-func (attached as .config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/b57766ae36b5e3dd11225f0259f9fd7d39a79e94
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Anna-Maria-Behnsen/timer-Move-from-a-push-remote-at-enqueue-to-a-pull-at-expiry-model/20221025-220106
git checkout b57766ae36b5e3dd11225f0259f9fd7d39a79e94
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/time/
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 >>):
kernel/time/timer_migration.c: In function 'tmigr_cpu_deactivate':
kernel/time/timer_migration.c:633:21: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
633 | u64 ret = tmc->wakeup;
| ^~~
In file included from include/linux/bitmap.h:9,
from include/linux/cpumask.h:12,
from arch/x86/include/asm/cpumask.h:5,
from arch/x86/include/asm/msr.h:11,
from arch/x86/include/asm/processor.h:22,
from arch/x86/include/asm/cpufeature.h:5,
from arch/x86/include/asm/thread_info.h:53,
from include/linux/thread_info.h:60,
from arch/x86/include/asm/preempt.h:7,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:56,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:7,
from include/linux/slab.h:15,
from kernel/time/timer_migration.c:8:
kernel/time/timer_migration.c: In function 'tmigr_inactive_up':
>> include/linux/find.h:168:37: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'union tmigr_state[1]' [-Warray-bounds]
168 | unsigned long val = *addr & GENMASK(size - 1, 0);
| ^~~~~
kernel/time/timer_migration.c:495:37: note: while referencing 'newstate'
495 | union tmigr_state curstate, newstate;
| ^~~~~~~~
vim +168 include/linux/find.h
c7f612cdf091de include/asm-generic/bitops/find.h Akinobu Mita 2006-03-26 154
b7ec62d7ee0f0b include/asm-generic/bitops/find.h Yury Norov 2021-08-14 155 #ifndef find_first_bit
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 156 /**
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 157 * find_first_bit - find the first set bit in a memory region
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 158 * @addr: The address to start the search at
ec778edf97dcaa include/asm-generic/bitops/find.h Cody P Schafer 2013-11-12 159 * @size: The maximum number of bits to search
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 160 *
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 161 * Returns the bit number of the first set bit.
ec778edf97dcaa include/asm-generic/bitops/find.h Cody P Schafer 2013-11-12 162 * If no bits are set, returns @size.
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 163 */
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 164 static inline
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 165 unsigned long find_first_bit(const unsigned long *addr, unsigned long size)
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 166 {
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 167 if (small_const_nbits(size)) {
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 @168 unsigned long val = *addr & GENMASK(size - 1, 0);
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 169
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 170 return val ? __ffs(val) : size;
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 171 }
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 172
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 173 return _find_first_bit(addr, size);
2cc7b6a44ac21d include/asm-generic/bitops/find.h Yury Norov 2021-05-06 174 }
b7ec62d7ee0f0b include/asm-generic/bitops/find.h Yury Norov 2021-08-14 175 #endif
708ff2a0097b02 include/asm-generic/bitops/find.h Akinobu Mita 2010-09-29 176
--
0-DAY CI Kernel Test Service
https://01.org/lkp
Download attachment ".config.gz" of type "application/gzip" (40517 bytes)
Powered by blists - more mailing lists