mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
ae5b067594
Commit296e46db00("MIPS: Don't unnecessarily include kmalloc.h into <asm/cache.h>.") claimed that the inclusion of the machine's kmalloc.h from asm/cache.h is unnecessary, but this is not true. Without including kmalloc.h we don't get a definition for ARCH_DMA_MINALIGN, which means we no longer suitably align DMA. Further to this the definition of ARCH_KMALLOC_MINALIGN provided by linux/slab.h ends up being set to the alignment of an unsigned long long value rather than to ARCH_DMA_MINALIGN, which means that buffers allocated using kmalloc may no longer be safely aligned for use with DMA. Fix this by re-adding the include of kmalloc.h in asm/cache.h. This reverts commit296e46db00("MIPS: Don't unnecessarily include kmalloc.h into <asm/cache.h>.") Signed-off-by: Paul Burton <paul.burton@imgtec.com> Fixes:296e46db00("MIPS: Don't unnecessarily include kmalloc.h into <asm/cache.h>.") Cc: linux-mips@linux-mips.org Cc: stable <stable@vger.kernel.org> # v4.12+ Patchwork: https://patchwork.linux-mips.org/patch/16895/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
20 lines
546 B
C
20 lines
546 B
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1997, 98, 99, 2000, 2003 Ralf Baechle
|
|
* Copyright (C) 1999 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _ASM_CACHE_H
|
|
#define _ASM_CACHE_H
|
|
|
|
#include <kmalloc.h>
|
|
|
|
#define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
|
|
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
|
|
|
|
#define __read_mostly __attribute__((__section__(".data..read_mostly")))
|
|
|
|
#endif /* _ASM_CACHE_H */
|