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| author |   Michal Wajdeczko <michal.wajdeczko@intel.com> | 2017-03-28 08:45:12 +0000 |
|---|---|---|
| committer |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-29 11:10:28 +0100 |
| commit | f0d661534fc90da1774e8af7e7faf5043375606f (patch) | |
| tree | 83ef0faea690b81178f80179310c797a2f084a00 /drivers/gpu/drm/i915/i915_utils.h | |
| parent | Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued (diff) | |
| download | wireguard-linux-f0d661534fc90da1774e8af7e7faf5043375606f.tar.xz wireguard-linux-f0d661534fc90da1774e8af7e7faf5043375606f.zip | |
drm/i915: Move WARN_ON/MISSING_CASE macros to i915_utils.h
We can't sometimes use these macros in other headers due to
include and definition order. As i915_utils.h already contains
other helper macros move these macros there.
v2: checkpatch cleanup for WARN() macro.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170328084513.174200-1-michal.wajdeczko@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_utils.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_utils.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index 94a3a3299910..c5455d36b617 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -25,6 +25,24 @@ #ifndef __I915_UTILS_H #define __I915_UTILS_H +#undef WARN_ON +/* Many gcc seem to no see through this and fall over :( */ +#if 0 +#define WARN_ON(x) ({ \ + bool __i915_warn_cond = (x); \ + if (__builtin_constant_p(__i915_warn_cond)) \ + BUILD_BUG_ON(__i915_warn_cond); \ + WARN(__i915_warn_cond, "WARN_ON(" #x ")"); }) +#else +#define WARN_ON(x) WARN((x), "%s", "WARN_ON(" __stringify(x) ")") +#endif + +#undef WARN_ON_ONCE +#define WARN_ON_ONCE(x) WARN_ONCE((x), "%s", "WARN_ON_ONCE(" __stringify(x) ")") + +#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \ + (long)(x), __func__) + #if GCC_VERSION >= 70000 #define add_overflows(A, B) \ __builtin_add_overflow_p((A), (B), (typeof((A) + (B)))0) |