Hi! > gcc-11 warns when building with W=1: > > drivers/leds/led-class-flash.c: In function 'flash_fault_show': > drivers/leds/led-class-flash.c:210:16: error: 'sprintf' argument 3 overlaps destination object 'buf' [-Werror=restrict] > 210 | return sprintf(buf, "%s\n", buf); > | ^~~~~~~~~~~~~~~~~~~~~~~~~ > drivers/leds/led-class-flash.c:187:54: note: destination object referenced by 'restrict'-qualified argument 1 was declared here > 187 | struct device_attribute *attr, char *buf) > | ~~~~~~^~~ > > There is no need for the sprintf() here when a strcat() does > the same thing without invoking undefined behavior. Thanks, applied. Pavel -- http://www.livejournal.com/~pavelmachek
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