* [drm-i915:drm-intel-next 1/1] drivers/gpu/drm/i915/display/skl_scaler.c:967:57: warning: variable 'id' is uninitialized when used here
@ 2025-08-05 18:55 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-08-05 18:55 UTC (permalink / raw)
To: Nemesa Garg; +Cc: llvm, oe-kbuild-all, Suraj Kandpal, Animesh Manna
tree: https://gitlab.freedesktop.org/drm/i915/kernel drm-intel-next
head: 73309ed9d598d35576431c4691813e080980df68
commit: 73309ed9d598d35576431c4691813e080980df68 [1/1] drm/i915/display: WA_14011503117
config: x86_64-buildonly-randconfig-2004-20250805 (https://download.01.org/0day-ci/archive/20250805/202508052002.gCODptW2-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250805/202508052002.gCODptW2-lkp@intel.com/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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508052002.gCODptW2-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/i915/display/skl_scaler.c:967:57: warning: variable 'id' is uninitialized when used here [-Wuninitialized]
967 | intel_de_write_fw(display, SKL_PS_ECC_STAT(crtc->pipe, id), 1);
| ^~
drivers/gpu/drm/i915/display/intel_display_regs.h:1193:8: note: expanded from macro 'SKL_PS_ECC_STAT'
1193 | _ID(id, _PS_ECC_STAT_1A, _PS_ECC_STAT_2A), \
| ^~
drivers/gpu/drm/i915/display/intel_display_regs.h:1043:34: note: expanded from macro '_ID'
1043 | #define _ID(id, a, b) _PICK_EVEN(id, a, b)
| ^~
drivers/gpu/drm/i915/i915_reg_defs.h:127:49: note: expanded from macro '_PICK_EVEN'
127 | #define _PICK_EVEN(__index, __a, __b) ((__a) + (__index) * ((__b) - (__a)))
| ^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/gpu/drm/i915/display/intel_display_reg_defs.h:18:45: note: expanded from macro '_PIPE'
18 | #define _PIPE(pipe, a, b) _PICK_EVEN(pipe, a, b)
| ^
drivers/gpu/drm/i915/i915_reg_defs.h:127:41: note: expanded from macro '_PICK_EVEN'
127 | #define _PICK_EVEN(__index, __a, __b) ((__a) + (__index) * ((__b) - (__a)))
| ^~~
drivers/gpu/drm/i915/i915_reg_defs.h:181:47: note: expanded from macro '_MMIO'
181 | #define _MMIO(r) ((const i915_reg_t){ .reg = (r) })
| ^
drivers/gpu/drm/i915/display/skl_scaler.c:962:8: note: initialize the variable 'id' to silence this warning
962 | int id;
| ^
| = 0
1 warning generated.
vim +/id +967 drivers/gpu/drm/i915/display/skl_scaler.c
955
956 void adl_scaler_ecc_unmask(const struct intel_crtc_state *crtc_state)
957 {
958 struct intel_display *display = to_intel_display(crtc_state);
959 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
960 const struct intel_crtc_scaler_state *scaler_state =
961 &crtc_state->scaler_state;
962 int id;
963
964 if (!scaler_state && scaler_state->scaler_id == -1)
965 return;
966
> 967 intel_de_write_fw(display, SKL_PS_ECC_STAT(crtc->pipe, id), 1);
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* [drm-i915:drm-intel-next 1/1] drivers/gpu/drm/i915/display/skl_scaler.c:967:57: warning: variable 'id' is uninitialized when used here
@ 2025-08-05 23:48 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-08-05 23:48 UTC (permalink / raw)
To: Nemesa Garg; +Cc: llvm, oe-kbuild-all, Suraj Kandpal, Animesh Manna
tree: https://gitlab.freedesktop.org/drm/i915/kernel drm-intel-next
head: 73309ed9d598d35576431c4691813e080980df68
commit: 73309ed9d598d35576431c4691813e080980df68 [1/1] drm/i915/display: WA_14011503117
config: loongarch-randconfig-002-20250806 (https://download.01.org/0day-ci/archive/20250806/202508060745.fMhGlpLI-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 8f09b03aebb71c154f3bbe725c29e3f47d37c26e)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250806/202508060745.fMhGlpLI-lkp@intel.com/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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508060745.fMhGlpLI-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/i915/display/skl_scaler.c:967:57: warning: variable 'id' is uninitialized when used here [-Wuninitialized]
967 | intel_de_write_fw(display, SKL_PS_ECC_STAT(crtc->pipe, id), 1);
| ^~
drivers/gpu/drm/i915/display/skl_scaler.c:962:8: note: initialize the variable 'id' to silence this warning
962 | int id;
| ^
| = 0
1 warning generated.
vim +/id +967 drivers/gpu/drm/i915/display/skl_scaler.c
955
956 void adl_scaler_ecc_unmask(const struct intel_crtc_state *crtc_state)
957 {
958 struct intel_display *display = to_intel_display(crtc_state);
959 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
960 const struct intel_crtc_scaler_state *scaler_state =
961 &crtc_state->scaler_state;
962 int id;
963
964 if (!scaler_state && scaler_state->scaler_id == -1)
965 return;
966
> 967 intel_de_write_fw(display, SKL_PS_ECC_STAT(crtc->pipe, id), 1);
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
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