Hi Ivan, [auto build test WARNING on linus/master] [also build test WARNING on v4.9 next-20161223] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/ivan-stoyanov-amk-drives-bg/dmaengine-ipu-Revert-ipu_irq_handler-changes/20161223-211424 config: arm-multi_v5_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm 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/dma/ipu/ipu_irq.c: In function 'ipu_irq_fn': >> drivers/dma/ipu/ipu_irq.c:342:4: warning: 'irq' may be used uninitialized in this function [-Wmaybe-uninitialized] generic_handle_irq(irq); ^~~~~~~~~~~~~~~~~~~~~~~ vim +/irq +342 drivers/dma/ipu/ipu_irq.c 326 unsigned int irq; 327 328 line--; 329 status &= ~(1UL << line); 330 331 raw_spin_lock(&bank_lock); 332 map = src2map(32 * i + line); 333 if (map) 334 irq = map->irq; 335 raw_spin_unlock(&bank_lock); 336 337 if (!map) { 338 pr_err("IPU: Interrupt on unmapped source %u bank %d\n", 339 line, i); 340 continue; 341 } > 342 generic_handle_irq(irq); 343 } 344 } 345 } 346 347 static struct irq_chip ipu_irq_chip = { 348 .name = "ipu_irq", 349 .irq_ack = ipu_irq_ack, 350 .irq_mask = ipu_irq_mask, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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