Hi Christian, [auto build test WARNING on staging/staging-testing] [also build test WARNING on v4.4-rc1 next-20151119]
url: https://github.com/0day-ci/linux/commits/Christian-Colic/staging-speakup-coding-sytle-remove-unnecessary-space-after-a-cast/20151120-012835 config: i386-randconfig-a0-201546 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/staging/speakup/devsynth.c: In function 'speakup_file_write': >> drivers/staging/speakup/devsynth.c:37:9: warning: 'bytes' may be used >> uninitialized in this function [-Wmaybe-uninitialized] return (ssize_t)bytes; ^ vim +/bytes +37 drivers/staging/speakup/devsynth.c 21 size_t bytes; 22 unsigned long flags; 23 u_char buf[256]; 24 25 if (!synth) 26 return -ENODEV; 27 while (count > 0) { 28 bytes = min(count, sizeof(buf)); 29 if (copy_from_user(buf, ptr, bytes)) 30 return -EFAULT; 31 count -= bytes; 32 ptr += bytes; 33 spin_lock_irqsave(&speakup_info.spinlock, flags); 34 synth_write(buf, bytes); 35 spin_unlock_irqrestore(&speakup_info.spinlock, flags); 36 } > 37 return (ssize_t)bytes; 38 } 39 40 static ssize_t speakup_file_read(struct file *fp, char __user *buf, 41 size_t nbytes, loff_t *ppos) 42 { 43 return 0; 44 } 45 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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