Hi Maarten, [auto build test ERROR on drm/drm-next] [also build test ERROR on next-20170904] [cannot apply to v4.13] [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/Maarten-Lankhorst/drm-atomic-Move-drm_crtc_commit-to-drm_crtc_state-v4/20170905-011023 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: x86_64-randconfig-x016-201736 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/gpu//drm/drm_atomic_helper.c: In function 'drm_atomic_helper_commit_hw_done': >> drivers/gpu//drm/drm_atomic_helper.c:1850:26: error: void value not ignored as it ought to be old_crtc_state->commit = drm_crtc_commit_get(commit); ^ vim +1850 drivers/gpu//drm/drm_atomic_helper.c 1814 1815 /** 1816 * drm_atomic_helper_commit_hw_done - setup possible nonblocking commit 1817 * @old_state: atomic state object with old state structures 1818 * 1819 * This function is used to signal completion of the hardware commit step. After 1820 * this step the driver is not allowed to read or change any permanent software 1821 * or hardware modeset state. The only exception is state protected by other 1822 * means than &drm_modeset_lock locks. 1823 * 1824 * Drivers should try to postpone any expensive or delayed cleanup work after 1825 * this function is called. 1826 * 1827 * This is part of the atomic helper support for nonblocking commits, see 1828 * drm_atomic_helper_setup_commit() for an overview. 1829 */ 1830 void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *old_state) 1831 { 1832 struct drm_crtc *crtc; 1833 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 1834 struct drm_crtc_commit *commit; 1835 int i; 1836 1837 for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { 1838 commit = new_crtc_state->commit; 1839 if (!commit) 1840 continue; 1841 1842 /* 1843 * copy new_crtc_state->commit to old_crtc_state->commit, 1844 * it's unsafe to touch new_crtc_state after hw_done, 1845 * but we still need to do so in cleanup_done(). 1846 */ 1847 if (old_crtc_state->commit) 1848 drm_crtc_commit_put(old_crtc_state->commit); 1849 > 1850 old_crtc_state->commit = drm_crtc_commit_get(commit); 1851 1852 /* backend must have consumed any event by now */ 1853 WARN_ON(new_crtc_state->event); 1854 complete_all(&commit->hw_done); 1855 } 1856 } 1857 EXPORT_SYMBOL(drm_atomic_helper_commit_hw_done); 1858 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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