drm/color: un-inline drm_color_lut_extract()

The function is not that big, but it's also not used for anything
performance critical. Make it a normal function.

As a side effect, this apparently makes sparse smarter about what it's
doing, and gets rid of the warning:

./include/drm/drm_color_mgmt.h:53:28: warning: shift too big (4294967295) for type unsigned long
./include/drm/drm_color_mgmt.h:53:28: warning: cast truncates bits from constant value (8000000000000000 becomes 0)

Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485164579-16250-1-git-send-email-jani.nikula@intel.com

diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c
index 789b4c6..5618f60 100644 (file)
--- a/drivers/gpu/drm/drm_color_mgmt.c
+++ b/drivers/gpu/drm/drm_color_mgmt.c
@@ -88,6 +88,30 @@
  */
 
 /**
+ * drm_color_lut_extract - clamp&round LUT entries
+ * @user_input: input value
+ * @bit_precision: number of bits the hw LUT supports
+ *
+ * Extract a degamma/gamma LUT value provided by user (in the form of
+ * &drm_color_lut entries) and round it to the precision supported by the
+ * hardware.
+ */
+uint32_t drm_color_lut_extract(uint32_t user_input, uint32_t bit_precision)
+{
+       uint32_t val = user_input;
+       uint32_t max = 0xffff >> (16 - bit_precision);
+
+       /* Round only if we're not using full precision. */
+       if (bit_precision < 16) {
+               val += 1UL << (16 - bit_precision - 1);
+               val >>= 16 - bit_precision;
+       }
+
+       return clamp_val(val, 0, max);
+}
+EXPORT_SYMBOL(drm_color_lut_extract);
+
+/**
  * drm_crtc_enable_color_mgmt - enable color management properties
  * @crtc: DRM CRTC
  * @degamma_lut_size: the size of the degamma lut (before CSC)

diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h
index c767238..bce4a53 100644 (file)
--- a/include/drm/drm_color_mgmt.h
+++ b/include/drm/drm_color_mgmt.h
@@ -25,6 +25,8 @@
 
 #include <linux/ctype.h>
 
+uint32_t drm_color_lut_extract(uint32_t user_input, uint32_t bit_precision);
+
 void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
                                uint degamma_lut_size,
                                bool has_ctm,
@@ -33,29 +35,4 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
                                 int gamma_size);
 
-/**
- * drm_color_lut_extract - clamp&round LUT entries
- * @user_input: input value
- * @bit_precision: number of bits the hw LUT supports
- *
- * Extract a degamma/gamma LUT value provided by user (in the form of
- * &drm_color_lut entries) and round it to the precision supported by the
- * hardware.
- */
-static inline uint32_t drm_color_lut_extract(uint32_t user_input,
-                                            uint32_t bit_precision)
-{
-       uint32_t val = user_input;
-       uint32_t max = 0xffff >> (16 - bit_precision);
-
-       /* Round only if we're not using full precision. */
-       if (bit_precision < 16) {
-               val += 1UL << (16 - bit_precision - 1);
-               val >>= 16 - bit_precision;
-       }
-
-       return clamp_val(val, 0, max);
-}
-
-
 #endif