Messages in this thread | | | Date | Mon, 11 Oct 2021 21:51:59 +0800 | From | kernel test robot <> | Subject | [ti:ti-rt-linux-5.10.y 9021/9998] drivers/gpu/drm/omapdrm/omap_wb_cap.c:512:13: warning: variable 'ret' set but not used |
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tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y head: 7ff055c5f01acc96255948cdd632c72fd78a1f72 commit: b5eff5a26c1aa3a3872533555a4678d510d07f87 [9021/9998] drm/omap: add WB support config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git git fetch --no-tags ti ti-rt-linux-5.10.y git checkout b5eff5a26c1aa3a3872533555a4678d510d07f87 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/gpu/drm/omapdrm/omap_wb_cap.c: In function 'stop_streaming': >> drivers/gpu/drm/omapdrm/omap_wb_cap.c:512:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 512 | int ret; | ^~~
vim +/ret +512 drivers/gpu/drm/omapdrm/omap_wb_cap.c
502 503 /* 504 * Stop the DMA engine. Any remaining buffers in the DMA queue are dequeued 505 * and passed on to the vb2 framework marked as STATE_ERROR. 506 */ 507 static void stop_streaming(struct vb2_queue *vq) 508 { 509 struct wbcap_dev *wbcap = vb2_get_drv_priv(vq); 510 struct omap_drm_private *priv = wbcap->dev->drm_dev->dev_private; 511 struct drm_crtc *crtc; > 512 int ret; 513 514 log_dbg(wbcap, "Stopping WB\n"); 515 log_dbg(wbcap, "current state: %d\n", wbcap->state); 516 517 wbcap->stopping = true; 518 ret = wait_event_timeout(wbcap->event, 519 !wbcap->stopping, 520 msecs_to_jiffies(250)); 521 522 log_dbg(wbcap, "Returning VB2 buffers\n"); 523 524 if (priv->dispc_ops->wb_go_busy(priv->dispc)) 525 log_err(wbcap, "WARNING, WB BUSY when stopping\n"); 526 527 /* Release all active buffers */ 528 return_all_buffers(wbcap, VB2_BUF_STATE_ERROR); 529 530 /* Disable vsync irq on the input crtc */ 531 crtc = priv->pipes[wb_inputs[wbcap->input].crtc_index].crtc; 532 drm_crtc_vblank_put(crtc); 533 534 priv->dispc_ops->runtime_put(priv->dispc); 535 } 536
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