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fbdev: fbmon: fix -Wextra build warnings

When 'DEBUG' is not defined, modify the DPRINTK() macro to use the
no_printk() macro instead of using <empty>.
This fixes a build warning when -Wextra is used and provides
printk format checking:

../drivers/video/fbdev/core/fbmon.c:812:47: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
../drivers/video/fbdev/core/fbmon.c:842:24: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]
../drivers/video/fbdev/core/fbmon.c:847:24: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200315041002.24473-2-rdunlap@infradead.org

authored by

Randy Dunlap and committed by
Bartlomiej Zolnierkiewicz b5445b24 06b522d6

+1 -1
+1 -1
drivers/video/fbdev/core/fbmon.c
··· 44 44 #ifdef DEBUG 45 45 #define DPRINTK(fmt, args...) printk(fmt,## args) 46 46 #else 47 - #define DPRINTK(fmt, args...) 47 + #define DPRINTK(fmt, args...) no_printk(fmt, ##args) 48 48 #endif 49 49 50 50 #define FBMON_FIX_HEADER 1