The last user of macros from that include was removed in 2018 by the
commit below.

Fixes: 6cc42152b02b ("drm/i915: Remove support for legacy debugfs crc interface")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/i915/display/intel_pipe_crc.c | 1 -
 drivers/gpu/drm/i915/i915_irq.c               | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_pipe_crc.c b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
index 8ac263f471be..9070935b0443 100644
--- a/drivers/gpu/drm/i915/display/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
@@ -24,7 +24,6 @@
  *
  */
 
-#include <linux/circ_buf.h>
 #include <linux/ctype.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5b98fb0532b5..e77f644d41e8 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -28,7 +28,6 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/circ_buf.h>
 #include <linux/slab.h>
 #include <linux/sysrq.h>
 
-- 
2.34.1

On Thu, 16 Dec 2021, Jiri Slaby <jslaby@suse.cz> wrote:
> The last user of macros from that include was removed in 2018 by the
> commit below.
>
> Fixes: 6cc42152b02b ("drm/i915: Remove support for legacy debugfs crc interface")
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: intel-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_pipe_crc.c | 1 -
>  drivers/gpu/drm/i915/i915_irq.c               | 1 -
>  2 files changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_pipe_crc.c b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
> index 8ac263f471be..9070935b0443 100644
> --- a/drivers/gpu/drm/i915/display/intel_pipe_crc.c
> +++ b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
> @@ -24,7 +24,6 @@
>   *
>   */
>  
> -#include <linux/circ_buf.h>
>  #include <linux/ctype.h>
>  #include <linux/debugfs.h>
>  #include <linux/seq_file.h>
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 5b98fb0532b5..e77f644d41e8 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -28,7 +28,6 @@
>  
>  #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>  
> -#include <linux/circ_buf.h>
>  #include <linux/slab.h>
>  #include <linux/sysrq.h>

-- 
Jani Nikula, Intel Open Source Graphics Center