| commit | 1033b3ea11820ea1fb1b877207bd6724e9aaedc3 | |
| author | Michael Buesch <mb@bu3sch.de> | |
| Wed, 23 Apr 2008 17:13:01 +0000 (23 19:13 +0200) | ||
| committer | John W. Linville <linville@tuxdriver.com> | |
| Thu, 24 Apr 2008 01:25:36 +0000 (23 21:25 -0400) | ||
| tree | 6037db5b31dcaa0596f5cca9843612707c881279 | treesnapshot (tar.gz zip) |
| parent | 0da926f05748d273e7b2b673b0de21629ae9acdd | commitdiff |
b43: Workaround DMA quirks
Some mainboards/CPUs don't allow DMA masks bigger than a certain limit.
Some VIA crap^h^h^h^hdevices have an upper limit of 0xFFFFFFFF. So in this
case a 64-bit b43 device would always fail to acquire the mask.
Implement a workaround to fallback to lower DMA mask, as we can always
also support a lower mask.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Some mainboards/CPUs don't allow DMA masks bigger than a certain limit.
Some VIA crap^h^h^h^hdevices have an upper limit of 0xFFFFFFFF. So in this
case a 64-bit b43 device would always fail to acquire the mask.
Implement a workaround to fallback to lower DMA mask, as we can always
also support a lower mask.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| drivers/net/wireless/b43/dma.c | diffblobblamehistory |