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Message-ID: <ZWwe1DJ7gBdOUHwY@google.com> Date: Sun, 3 Dec 2023 06:23:16 +0000 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: kernel test robot <lkp@...el.com> Cc: Böszörményi Zoltán <zboszormenyi@...om.com>, oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org Subject: Re: drivers/input/touchscreen/egalax_ts_serial.c:116:21: warning: '/input0' directive output may be truncated writing 7 bytes into a region of size between 1 and 32 On Sun, Dec 03, 2023 at 02:07:07PM +0800, kernel test robot wrote: > Hi Böszörményi, > > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 815fb87b753055df2d9e50f6cd80eb10235fe3e9 > commit: 6b0f8f9c52efe24d6dac06ab963b7bd91c723751 Input: add eGalaxTouch serial touchscreen driver > date: 8 years ago > config: x86_64-randconfig-r032-20230515 (https://download.01.org/0day-ci/archive/20231202/202312021646.cwwvptuB-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/20231202/202312021646.cwwvptuB-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/202312021646.cwwvptuB-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > In file included from include/linux/kobject.h:21, > from include/linux/module.h:17, > from drivers/input/touchscreen/egalax_ts_serial.c:19: > include/linux/sysfs.h: In function 'sysfs_get_dirent': > include/linux/sysfs.h:517:44: warning: pointer targets in passing argument 2 of 'kernfs_find_and_get' differ in signedness [-Wpointer-sign] > 517 | return kernfs_find_and_get(parent, name); > | ^~~~ > | | > | const unsigned char * > In file included from include/linux/sysfs.h:15: > include/linux/kernfs.h:428:57: note: expected 'const char *' but argument is of type 'const unsigned char *' > 428 | kernfs_find_and_get(struct kernfs_node *kn, const char *name) > | ~~~~~~~~~~~~^~~~ > drivers/input/touchscreen/egalax_ts_serial.c: In function 'egalax_connect': > >> drivers/input/touchscreen/egalax_ts_serial.c:116:21: warning: '/input0' directive output may be truncated writing 7 bytes into a region of size between 1 and 32 [-Wformat-truncation=] > 116 | "%s/input0", serio->phys); Please stop using -Wformat-truncation and report warnings as errors. This particular warning is disabled in normal builds and the truncation is desired outcome here. Thanks. -- Dmitry
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