linux-kernel - [PATCH -next] fbdev: atyfb: always declare aty_{ld,st}

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Date:   Wed, 24 Feb 2021 13:55:28 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>
Subject: [PATCH -next] fbdev: atyfb: always declare aty_{ld,st}_lcd()

The previously added stubs for aty_{ld,}st_lcd() make it
so that these functions are used regardless of the config
options that were guarding them, so remove the #ifdef/#endif
lines and make their declarations always visible.
This fixes build warnings that were reported by clang:

   drivers/video/fbdev/aty/atyfb_base.c:180:6: warning: no previous prototype for function 'aty_st_lcd' [-Wmissing-prototypes]
   void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
        ^
   drivers/video/fbdev/aty/atyfb_base.c:180:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)

   drivers/video/fbdev/aty/atyfb_base.c:183:5: warning: no previous prototype for function 'aty_ld_lcd' [-Wmissing-prototypes]
   u32 aty_ld_lcd(int index, const struct atyfb_par *par)
       ^
   drivers/video/fbdev/aty/atyfb_base.c:183:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   u32 aty_ld_lcd(int index, const struct atyfb_par *par)

They should not be marked as static since they are used in
mach64_ct.c.

Fixes: bfa5782b9caa ("fbdev: atyfb: add stubs for aty_{ld,st}_lcd()")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: linux-fbdev@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: David Airlie <airlied@...ux.ie>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>
---
 drivers/video/fbdev/aty/atyfb.h |    3 ---
 1 file changed, 3 deletions(-)

--- linux-next-20210219.orig/drivers/video/fbdev/aty/atyfb.h
+++ linux-next-20210219/drivers/video/fbdev/aty/atyfb.h
@@ -287,11 +287,8 @@ static inline void aty_st_8(int regindex
 #endif
 }
 
-#if defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) || \
-defined (CONFIG_FB_ATY_BACKLIGHT)
 extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
 extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
-#endif
 
     /*
      *  DAC operations