[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/2] drm/i915/userptr: Avoid struct_mutex recursion for mmu_invalidate_range_start (rev2)

[Patchwork]

== Series Details ==

Series: series starting with [1/2] drm/i915/userptr: Avoid struct_mutex recursion for mmu_invalidate_range_start (rev2)
URL   : https://patchwork.freedesktop.org/series/54869/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
9900081d5714 drm/i915/userptr: Avoid struct_mutex recursion for mmu_invalidate_range_start
-:23: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#23: 
References: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")

-:23: ERROR:GIT_COMMIT_ID: Please use git commit description style 'commit <12+ chars of sha1> ("<title line>")' - ie: 'commit 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")'
#23: 
References: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")

-:241: ERROR:LOCKING: recursive locking is bad, do not use this ever.
#241: FILE: drivers/gpu/drm/i915/i915_gem_userptr.c:106:
+	switch (mutex_trylock_recursive(m)) {

total: 2 errors, 1 warnings, 0 checks, 442 lines checked
e48b524247ee drm/i915/userptr: Probe vma range before gup