Hi Suraj, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-i915/for-linux-next] [also build test WARNING on drm-tip/drm-tip] [cannot apply to drm-i915/for-linux-next-fixes linus/master v6.19-rc3 next-20251219] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Suraj-Kandpal/drm-i915-cx0-Split-PLL-enabling-disabling-in-two-parts/20251230-163308 base: https://gitlab.freedesktop.org/drm/i915/kernel.git for-linux-next patch link: https://lore.kernel.org/r/20251230083142.70064-2-suraj.kandpal%40intel.com patch subject: [PATCH 1/3] drm/i915/cx0: Split PLL enabling/disabling in two parts config: x86_64-rhel-9.4-kunit (https://download.01.org/0day-ci/archive/20251230/[email protected]/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251230/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): In file included from include/linux/bits.h:5, from include/linux/bitops.h:6, from include/linux/log2.h:12, from drivers/gpu/drm/i915/display/intel_cx0_phy.c:6: drivers/gpu/drm/i915/display/intel_cx0_phy.c: In function 'intel_cx0pll_enable_clock': >> include/vdso/bits.h:7:33: warning: statement with no effect [-Wunused-value] 7 | #define BIT(nr) (UL(1) << (nr)) | ^ drivers/gpu/drm/i915/display/intel_cx0_phy.c:32:33: note: in expansion of macro 'BIT' 32 | #define INTEL_CX0_LANE0 BIT(0) | ^~~ drivers/gpu/drm/i915/display/intel_cx0_phy.c:3388:43: note: in expansion of macro 'INTEL_CX0_LANE0' 3388 | INTEL_CX0_LANE0; | ^~~~~~~~~~~~~~~ -- In file included from include/linux/bits.h:5, from include/linux/bitops.h:6, from include/linux/log2.h:12, from display/intel_cx0_phy.c:6: display/intel_cx0_phy.c: In function 'intel_cx0pll_enable_clock': >> include/vdso/bits.h:7:33: warning: statement with no effect [-Wunused-value] 7 | #define BIT(nr) (UL(1) << (nr)) | ^ display/intel_cx0_phy.c:32:33: note: in expansion of macro 'BIT' 32 | #define INTEL_CX0_LANE0 BIT(0) | ^~~ display/intel_cx0_phy.c:3388:43: note: in expansion of macro 'INTEL_CX0_LANE0' 3388 | INTEL_CX0_LANE0; | ^~~~~~~~~~~~~~~ vim +7 include/vdso/bits.h 3945ff37d2f48d Vincenzo Frascino 2020-03-20 6 3945ff37d2f48d Vincenzo Frascino 2020-03-20 @7 #define BIT(nr) (UL(1) << (nr)) cbdb1f163af2bb Andy Shevchenko 2022-11-28 8 #define BIT_ULL(nr) (ULL(1) << (nr)) 3945ff37d2f48d Vincenzo Frascino 2020-03-20 9 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
