ffs() is 1-indexed, but we want to use it as an index into an array, so
use __ffs() instead.
Fixes: eb8d0f5af4ec ("drm/i915: Remove GPU reset dependence on struct_mutex")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gpu_error.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 3d8020888604..26bac517e383 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1656,7 +1656,7 @@ error_msg(struct i915_gpu_state *error, unsigned long engines, const char *msg)
i915_error_generate_code(error, engines));
if (engines) {
/* Just show the first executing process, more is confusing */
- i = ffs(engines);
+ i = __ffs(engines);
len += scnprintf(error->error_msg + len,
sizeof(error->error_msg) - len,
", in %s [%d]",
--
2.20.1
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