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authorH. Peter Anvin <hpa@zytor.com>2007-09-28 02:17:12 +0200
committerH. Peter Anvin <hpa@zytor.com>2007-09-28 19:12:44 +0200
commit4ee5b10abeb2b5581be10d3022694cd19084e9b0 (patch)
treee269f4bd3570ee41b94b68974891e51ef011a9f6 /arch/alpha/lib/udelay.c
parentRevert "[PATCH] x86-64: fix x86_64-mm-sched-clock-share" (diff)
downloadlinux-4ee5b10abeb2b5581be10d3022694cd19084e9b0.tar.xz
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[x86 setup] Correct the SMAP check for INT 0x15, AX=0xe820
The e820 probe code was checking %edx, not %eax, for the SMAP signature on return. This worked on *almost* all systems, since %edx still contained SMAP from the call on entry, but on a handful of systems it failed -- plus, we would have missed real mismatches. The error output is "=d" to make sure gcc knows %edx is clobbered here. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/alpha/lib/udelay.c')
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