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| author |   Arnd Bergmann <arnd@arndb.de> | 2021-09-20 14:17:19 +0200 |
|---|---|---|
| committer |   Helge Deller <deller@gmx.de> | 2022-01-29 22:24:25 +0100 |
| commit | 3e17314c22eaec164d2b01b7c41466054df64cb3 (patch) | |
| tree | 00046c1ff4477bc7ef5e9350c42313f99a7c28dd /arch/sparc/include/asm | |
| parent | video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow (diff) | |
| download | linux-dev-3e17314c22eaec164d2b01b7c41466054df64cb3.tar.xz linux-dev-3e17314c22eaec164d2b01b7c41466054df64cb3.zip | |
agp: define proper stubs for empty helpers
The empty unmap_page_from_agp() macro causes a warning when
building with 'make W=1' on a couple of architectures:
drivers/char/agp/generic.c: In function 'agp_generic_destroy_page':
drivers/char/agp/generic.c:1265:28: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
1265 | unmap_page_from_agp(page);
Change the definitions to a 'do { } while (0)' construct to
make these more reliable.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/sparc/include/asm')
| -rw-r--r-- | arch/sparc/include/asm/agp.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/agp.h b/arch/sparc/include/asm/agp.h index efe0d6a12e5a..2d0ff84cee3f 100644 --- a/arch/sparc/include/asm/agp.h +++ b/arch/sparc/include/asm/agp.h @@ -4,9 +4,9 @@ /* dummy for now */ -#define map_page_into_agp(page) -#define unmap_page_from_agp(page) -#define flush_agp_cache() mb() +#define map_page_into_agp(page) do { } while (0) +#define unmap_page_from_agp(page) do { } while (0) +#define flush_agp_cache() mb() /* GATT allocation. Returns/accepts GATT kernel virtual address. */ #define alloc_gatt_pages(order) \ |