fbcon: replace mono_col macro with static inline

Use __u32 for max_len to match the declaration of length in the struct
fb_bitfield.

Suppresses sparse shadowed variable warnings from the nested max()
macros:
drivers/video/console/fbcon.h:130:8: warning: symbol '_x' shadows an earlier one
drivers/video/console/fbcon.h:130:8: originally declared here
drivers/video/console/fbcon.h:130:8: warning: symbol '_x' shadows an earlier one
drivers/video/console/fbcon.h:130:8: originally declared here
drivers/video/console/fbcon.h:130:8: warning: symbol '_y' shadows an earlier one
drivers/video/console/fbcon.h:130:8: originally declared here

[akpm@linux-foundation.org: fix constness]
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index 3706307e70ed..0135e0395456 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -104,10 +104,14 @@ struct fbcon_ops {
 #define attr_blink(s) \
         ((s) & 0x8000)
         
-#define mono_col(info)                                                  \
-        (~(0xfff << (max((info)->var.green.length,                      \
-                         max((info)->var.red.length,                    \
-                             (info)->var.blue.length)))) & 0xff)
+
+static inline int mono_col(const struct fb_info *info)
+{
+        __u32 max_len;
+        max_len = max(info->var.green.length, info->var.red.length);
+        max_len = max(info->var.blue.length, max_len);
+        return ~(0xfff << (max_len & 0xff));
+}
 
 static inline int attr_col_ec(int shift, struct vc_data *vc,
                               struct fb_info *info, int is_fg)