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[ Upstream commita5035c8184] wr_reg_wa() is not an appropriate name for a global function, and doesn't need to be global anyway, so mark it static and avoid the warning: drivers/video/fbdev/fsl-diu-fb.c:493:6: error: no previous prototype for 'wr_reg_wa' [-Werror=missing-prototypes] Fixes:0d9dab39fb("powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sasha Levin <sashal@kernel.org>