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>
20 lines
557 B
C
20 lines
557 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_AGP_H
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#define _ASM_POWERPC_AGP_H
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#ifdef __KERNEL__
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#include <asm/io.h>
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#define map_page_into_agp(page) do {} while (0)
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#define unmap_page_from_agp(page) do {} while (0)
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#define flush_agp_cache() mb()
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/* GATT allocation. Returns/accepts GATT kernel virtual address. */
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#define alloc_gatt_pages(order) \
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((char *)__get_free_pages(GFP_KERNEL, (order)))
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#define free_gatt_pages(table, order) \
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free_pages((unsigned long)(table), (order))
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_AGP_H */
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