Messages in this thread | | | Date | Wed, 8 Nov 2023 11:43:08 +0530 | From | Viresh Kumar <> | Subject | Re: drivers/opp/debugfs.c:48:54: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 |
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On 06-11-23, 18:41, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: d2f51b3516dade79269ff45eae2a7668ae711b25 > commit: 46f48aca2e5aef3f430e95d1a5fb68227ec8ec85 OPP: Fix missing debugfs supply directory for OPPs > date: 4 years, 11 months ago
This is a really old commit, are we running the test over it ? Or it is what git bisect reported ?
> config: x86_64-randconfig-r025-20230725 (https://download.01.org/0day-ci/archive/20231106/202311061847.BOtfUmbQ-lkp@intel.com/config) > compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231106/202311061847.BOtfUmbQ-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@intel.com> > | Closes: https://lore.kernel.org/oe-kbuild-all/202311061847.BOtfUmbQ-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > drivers/opp/debugfs.c: In function 'opp_debug_create_one': > >> drivers/opp/debugfs.c:48:54: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Wformat-truncation=] > 48 | snprintf(name, sizeof(name), "supply-%d", i); > | ^~ > In function 'opp_debug_create_supplies', > inlined from 'opp_debug_create_one' at drivers/opp/debugfs.c:119:7: > drivers/opp/debugfs.c:48:46: note: directive argument in the range [-2147483644, 2147483646] > 48 | snprintf(name, sizeof(name), "supply-%d", i); > | ^~~~~~~~~~~ > drivers/opp/debugfs.c:48:17: note: 'snprintf' output between 9 and 19 bytes into a destination of size 15 > 48 | snprintf(name, sizeof(name), "supply-%d", i); > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I tried to reproduce it for ARM and don't see the warning locally. I saw a similar one earlier (reported by the bot), which is already fixed:
make ARCH=arm64 O=../barm64/ -j8 CROSS_COMPILE=aarch64-linux-gnu- W=1 CONFIG_DEBUG_SECTION_MISMATCH=y
-- viresh
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