[Intel-gfx] [drm-intel:drm-intel-nightly 2/10] drivers/gpu/drm/i915/intel_opregion.c:1081:2: note: in expansion of macro 'if'
kbuild test robot
fengguang.wu at intel.com
Thu Jul 14 17:56:35 UTC 2016
tree: git://anongit.freedesktop.org/drm-intel drm-intel-nightly
head: 2d854c67e3af36b190e8499a3bfad7cdccde0f67
commit: 01734c300fbff01e321d4ff1b3c91e24e0a3b90d [2/10] Merge remote-tracking branch 'origin/drm-intel-next-fixes' into drm-intel-nightly
config: x86_64-randconfig-s1-07150032 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
git checkout 01734c300fbff01e321d4ff1b3c91e24e0a3b90d
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
In file included from include/linux/ioport.h:12:0,
from include/linux/acpi.h:25,
from drivers/gpu/drm/i915/intel_opregion.c:28:
drivers/gpu/drm/i915/intel_opregion.c: In function 'intel_opregion_get_panel_type':
drivers/gpu/drm/i915/intel_opregion.c:1081:17: error: 'dev' undeclared (first use in this function)
if (IS_SKYLAKE(dev)) {
^
include/linux/compiler.h:151:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/gpu/drm/i915/intel_opregion.c:1081:2: note: in expansion of macro 'if'
if (IS_SKYLAKE(dev)) {
^~
include/linux/compiler.h:149:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
>> drivers/gpu/drm/i915/i915_drv.h:2628:2: note: in expansion of macro 'if'
if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
^~
>> drivers/gpu/drm/i915/i915_drv.h:2636:26: note: in expansion of macro '__I915__'
#define INTEL_INFO(p) (&__I915__(p)->info)
^~~~~~~~
drivers/gpu/drm/i915/i915_drv.h:2695:26: note: in expansion of macro 'INTEL_INFO'
#define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
^~~~~~~~~~
drivers/gpu/drm/i915/intel_opregion.c:1081:6: note: in expansion of macro 'IS_SKYLAKE'
if (IS_SKYLAKE(dev)) {
^~~~~~~~~~
drivers/gpu/drm/i915/intel_opregion.c:1081:17: note: each undeclared identifier is reported only once for each function it appears in
if (IS_SKYLAKE(dev)) {
^
include/linux/compiler.h:151:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/gpu/drm/i915/intel_opregion.c:1081:2: note: in expansion of macro 'if'
if (IS_SKYLAKE(dev)) {
^~
include/linux/compiler.h:149:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
>> drivers/gpu/drm/i915/i915_drv.h:2628:2: note: in expansion of macro 'if'
if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
^~
>> drivers/gpu/drm/i915/i915_drv.h:2636:26: note: in expansion of macro '__I915__'
#define INTEL_INFO(p) (&__I915__(p)->info)
^~~~~~~~
drivers/gpu/drm/i915/i915_drv.h:2695:26: note: in expansion of macro 'INTEL_INFO'
#define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
^~~~~~~~~~
drivers/gpu/drm/i915/intel_opregion.c:1081:6: note: in expansion of macro 'IS_SKYLAKE'
if (IS_SKYLAKE(dev)) {
^~~~~~~~~~
vim +/if +1081 drivers/gpu/drm/i915/intel_opregion.c
a0562819 Ville Syrjälä 2016-04-11 1065 DRM_DEBUG_KMS("Invalid OpRegion panel type 0x%x\n", ret);
a0562819 Ville Syrjälä 2016-04-11 1066 return -EINVAL;
a0562819 Ville Syrjälä 2016-04-11 1067 }
a0562819 Ville Syrjälä 2016-04-11 1068
a0562819 Ville Syrjälä 2016-04-11 1069 /* fall back to VBT panel type? */
a0562819 Ville Syrjälä 2016-04-11 1070 if (ret == 0x0) {
a0562819 Ville Syrjälä 2016-04-11 1071 DRM_DEBUG_KMS("No panel type in OpRegion\n");
a0562819 Ville Syrjälä 2016-04-11 1072 return -ENODEV;
a0562819 Ville Syrjälä 2016-04-11 1073 }
a0562819 Ville Syrjälä 2016-04-11 1074
aeddda06 Ville Syrjälä 2016-07-12 1075 /*
aeddda06 Ville Syrjälä 2016-07-12 1076 * FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
aeddda06 Ville Syrjälä 2016-07-12 1077 * low vswing for eDP, whereas the VBT panel type (2) gives us normal
aeddda06 Ville Syrjälä 2016-07-12 1078 * vswing instead. Low vswing results in some display flickers, so
aeddda06 Ville Syrjälä 2016-07-12 1079 * let's simply ignore the OpRegion panel type on SKL for now.
aeddda06 Ville Syrjälä 2016-07-12 1080 */
aeddda06 Ville Syrjälä 2016-07-12 @1081 if (IS_SKYLAKE(dev)) {
aeddda06 Ville Syrjälä 2016-07-12 1082 DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
aeddda06 Ville Syrjälä 2016-07-12 1083 return -ENODEV;
aeddda06 Ville Syrjälä 2016-07-12 1084 }
aeddda06 Ville Syrjälä 2016-07-12 1085
a0562819 Ville Syrjälä 2016-04-11 1086 return ret - 1;
a0562819 Ville Syrjälä 2016-04-11 1087 }
:::::: The code at line 1081 was first introduced by commit
:::::: aeddda06c1a704bb97c8a7bfe7a472120193bd56 drm/i915: Ignore panel type from OpRegion on SKL
:::::: TO: Ville Syrjälä <ville.syrjala at linux.intel.com>
:::::: CC: Daniel Vetter <daniel.vetter at ffwll.ch>
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