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| author | David Miller <davem@davemloft.net> | 2007-03-05 01:35:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-05 08:12:54 -0800 |
| commit | 8690ba446defe2e2b81803756c099d2943dfd5fd (patch) | |
| tree | c7df0f8765ffeeb192ae2a338427c4158100d77d /README | |
| parent | 8f485612231792373580e8b2fe8ceb3791549aa5 (diff) | |
| download | op-kernel-dev-8690ba446defe2e2b81803756c099d2943dfd5fd.zip op-kernel-dev-8690ba446defe2e2b81803756c099d2943dfd5fd.tar.gz | |
[PATCH] video/aty/mach64_ct.c: fix bogus delay loop
CT based mach64 cards were reported to hang on sparc64 boxes when
compiled with gcc-4.1.x and later.
Looking at this piece of code, it's no surprise. A critical
delay was implemented as an empty for() loop, and gcc 4.0.x
and previous did not optimize it away, so we did get a delay.
But gcc-4.1.x and later can optimize it away, and we get crashes.
Use a real udelay() to fix this. Fix verified on SunBlade100.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions
