Re: [PATCH] linux/vt_buffer.h: allow either builtin or modular for macros

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On 3/29/23 04:15, Randy Dunlap wrote:
Fix build errors on ARCH=alpha when CONFIG_MDA_CONSOLE=m.
This allows the ARCH macros to be the only ones defined.

In file included from ../drivers/video/console/mdacon.c:37:
../arch/alpha/include/asm/vga.h:17:40: error: expected identifier or '(' before 'volatile'
    17 | static inline void scr_writew(u16 val, volatile u16 *addr)
       |                                        ^~~~~~~~
../include/linux/vt_buffer.h:24:34: note: in definition of macro 'scr_writew'
    24 | #define scr_writew(val, addr) (*(addr) = (val))
       |                                  ^~~~
../include/linux/vt_buffer.h:24:40: error: expected ')' before '=' token
    24 | #define scr_writew(val, addr) (*(addr) = (val))
       |                                        ^
../arch/alpha/include/asm/vga.h:17:20: note: in expansion of macro 'scr_writew'
    17 | static inline void scr_writew(u16 val, volatile u16 *addr)
       |                    ^~~~~~~~~~
../arch/alpha/include/asm/vga.h:25:29: error: expected identifier or '(' before 'volatile'
    25 | static inline u16 scr_readw(volatile const u16 *addr)
       |                             ^~~~~~~~

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jiri Slaby <jirislaby@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-fbdev@xxxxxxxxxxxxxxx

applied to fbdev git tree.

Thanks!
Helge

---
  include/linux/vt_buffer.h |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/include/linux/vt_buffer.h b/include/linux/vt_buffer.h
--- a/include/linux/vt_buffer.h
+++ b/include/linux/vt_buffer.h
@@ -16,7 +16,7 @@

  #include <linux/string.h>

-#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
+#if IS_ENABLED(CONFIG_VGA_CONSOLE) || IS_ENABLED(CONFIG_MDA_CONSOLE)
  #include <asm/vga.h>
  #endif






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