diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2007-05-06 14:49:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:12:51 -0700 |
| commit | 411f0f3edc141a582190d3605cadd1d993abb6df (patch) | |
| tree | d9d745beb57ffb0a987c1991635db940127421b6 /lib/Kconfig | |
| parent | 9a82782f8f58219d0c6dc5f0211ce301adf6c6f4 (diff) | |
| download | lwn-411f0f3edc141a582190d3605cadd1d993abb6df.tar.gz lwn-411f0f3edc141a582190d3605cadd1d993abb6df.zip | |
Introduce CONFIG_HAS_DMA
Architectures that don't support DMA can say so by adding a config NO_DMA
to their Kconfig file. This will prevent compilation of some dma specific
driver code. Also dma-mapping-broken.h isn't needed anymore on at least
s390. This avoids compilation and linking of otherwise dead/broken code.
Other architectures that include dma-mapping-broken.h are arm26, h8300,
m68k, m68knommu and v850. If these could be converted as well we could get
rid of the header file.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
"John W. Linville" <linville@tuxdriver.com>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: <James.Bottomley@SteelEye.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <geert@linux-m68k.org>
Cc: <zippel@linux-m68k.org>
Cc: <spyro@f2s.com>
Cc: <uclinux-v850@lsi.nec.co.jp>
Cc: <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 384249915047..96d6e8ca8b70 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -111,4 +111,9 @@ config HAS_IOPORT depends on HAS_IOMEM && !NO_IOPORT default y +config HAS_DMA + boolean + depends on !NO_DMA + default y + endmenu |