mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-03 17:40:04 +00:00
3e17314c22
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>
19 lines
557 B
C
19 lines
557 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_POWERPC_AGP_H
|
|
#define _ASM_POWERPC_AGP_H
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/io.h>
|
|
|
|
#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) \
|
|
((char *)__get_free_pages(GFP_KERNEL, (order)))
|
|
#define free_gatt_pages(table, order) \
|
|
free_pages((unsigned long)(table), (order))
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_AGP_H */
|