diff options
| author | Stafford Horne <shorne@gmail.com> | 2022-07-23 06:49:42 +0900 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-07-22 17:24:47 -0500 |
| commit | abb4970ac33514c84b143516583eaf8cc47abd67 (patch) | |
| tree | 088c26843690abdfd7cd77a63bde4bdd7906f4dc /include/linux/isa-dma.h | |
| parent | ae85b23c65dbb079c83d8a08ff7699215f104e42 (diff) | |
PCI: Move isa_dma_bridge_buggy out of asm/dma.h
The isa_dma_bridge_buggy symbol is only used for x86_32, and only x86_32
platforms or quirks ever set it.
Add a new linux/isa-dma.h header that #defines isa_dma_bridge_buggy to 0
except on x86_32, where we keep it as a variable, and remove all the arch-
specific definitions.
[bhelgaas: commit log]
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Link: https://lore.kernel.org/r/20220722214944.831438-3-shorne@gmail.com
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'include/linux/isa-dma.h')
| -rw-r--r-- | include/linux/isa-dma.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/isa-dma.h b/include/linux/isa-dma.h new file mode 100644 index 000000000000..61504a8c1b9e --- /dev/null +++ b/include/linux/isa-dma.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __LINUX_ISA_DMA_H +#define __LINUX_ISA_DMA_H + +#include <asm/dma.h> + +#if defined(CONFIG_PCI) && defined(CONFIG_X86_32) +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + +#endif /* __LINUX_ISA_DMA_H */ |