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authorDavid S. Miller <davem@davemloft.net>2009-08-18 23:44:08 -0700
committerDavid S. Miller <davem@davemloft.net>2009-08-18 23:44:08 -0700
commita9919646d12a13bea7eb74b996686f900dffb120 (patch)
tree718c2cdabb49cef33c2d45cd0cf1d7b6ce5218af /arch/sparc/configs
parentsparc: sys32.S incorrect compat-layer splice() system call (diff)
downloadlinux-dev-a9919646d12a13bea7eb74b996686f900dffb120.tar.xz
linux-dev-a9919646d12a13bea7eb74b996686f900dffb120.zip
sparc32: Kill trap table freeing code.
Normally, srmmu uses different trap table register values to allow determination of the cpu we're on. All of the trap tables have identical content, they just sit at different offsets from the first trap table, and the offset shifted down and masked out determines the cpu we are on. The code tries to free them up when they aren't actually used (don't have all 4 cpus, we're on sun4d, etc.) but that causes problems. For one thing it triggers false positives in the DMA debugging code. And fixing that up while preserving this relative offset thing isn't trivial. So just kill the freeing code, it costs us at most 3 pages, big deal... Signed-off-by: David S. Miller <davem@davemloft.net>
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