x86: use limited register constraint for setnz
Impact: build fix with certain compilers GCC can decide to use %dil when "r" is used, which is not valid for setnz. This bug was brought out by Stephen Rothwell's merging of the branch tracer into linux-next. [ Thanks to Uros Bizjak for recommending 'q' over 'Q' ] Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -74,7 +74,7 @@ static int kbd_pending(void)
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{
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{
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u8 pending;
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u8 pending;
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asm volatile("int $0x16; setnz %0"
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asm volatile("int $0x16; setnz %0"
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: "=rm" (pending)
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: "=qm" (pending)
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: "a" (0x0100));
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: "a" (0x0100));
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return pending;
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return pending;
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}
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}
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