Hi Bernard, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on v5.12 next-20210429] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Bernard-Zhao/drm-i915-Use-might_alloc/20210429-104516 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-rhel-8.3-kselftests (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/9fbd0c1741ce06241105d753ff3432ab55f3e94a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Bernard-Zhao/drm-i915-Use-might_alloc/20210429-104516 git checkout 9fbd0c1741ce06241105d753ff3432ab55f3e94a # save the attached .config to linux build tree make W=1 W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/i915/i915_sw_fence.c: In function '__i915_sw_fence_await_sw_fence': >> drivers/gpu/drm/i915/i915_sw_fence.c:344:2: error: implicit declaration of function 'might_alloc'; did you mean 'might_lock'? [-Werror=implicit-function-declaration] 344 | might_alloc(gfp); | ^~~~~~~~~~~ | might_lock cc1: some warnings being treated as errors vim +344 drivers/gpu/drm/i915/i915_sw_fence.c 335 336 static int __i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence, 337 struct i915_sw_fence *signaler, 338 wait_queue_entry_t *wq, gfp_t gfp) 339 { 340 unsigned int pending; 341 unsigned long flags; 342 343 debug_fence_assert(fence); > 344 might_alloc(gfp); 345 346 if (i915_sw_fence_done(signaler)) { 347 i915_sw_fence_set_error_once(fence, signaler->error); 348 return 0; 349 } 350 351 debug_fence_assert(signaler); 352 353 /* The dependency graph must be acyclic. */ 354 if (unlikely(i915_sw_fence_check_if_after(fence, signaler))) 355 return -EINVAL; 356 357 pending = I915_SW_FENCE_FLAG_FENCE; 358 if (!wq) { 359 wq = kmalloc(sizeof(*wq), gfp); 360 if (!wq) { 361 if (!gfpflags_allow_blocking(gfp)) 362 return -ENOMEM; 363 364 i915_sw_fence_wait(signaler); 365 i915_sw_fence_set_error_once(fence, signaler->error); 366 return 0; 367 } 368 369 pending |= I915_SW_FENCE_FLAG_ALLOC; 370 } 371 372 INIT_LIST_HEAD(&wq->entry); 373 wq->flags = pending; 374 wq->func = i915_sw_fence_wake; 375 wq->private = fence; 376 377 i915_sw_fence_await(fence); 378 379 spin_lock_irqsave(&signaler->wait.lock, flags); 380 if (likely(!i915_sw_fence_done(signaler))) { 381 __add_wait_queue_entry_tail(&signaler->wait, wq); 382 pending = 1; 383 } else { 384 i915_sw_fence_wake(wq, 0, signaler->error, NULL); 385 pending = 0; 386 } 387 spin_unlock_irqrestore(&signaler->wait.lock, flags); 388 389 return pending; 390 } 391 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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