summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRusty Russell <rusty@rustcorp.com.au>2015-03-20 14:18:12 +1030
committerRusty Russell <rusty@rustcorp.com.au>2015-03-20 15:07:08 +1030
commit88ad1a147e2c84d33cb50f5ebff1ece5e0cd4383 (patch)
tree787bf5d65989c9bf09391f606f12f43dfee69c3d
parentc58616580ea520aab8dacef787d855bea3e81c25 (diff)
downloadop-kernel-dev-88ad1a147e2c84d33cb50f5ebff1ece5e0cd4383.zip
op-kernel-dev-88ad1a147e2c84d33cb50f5ebff1ece5e0cd4383.tar.gz
lguest: fix pending interrupt test.
Denys says: TEST with zero will always set ZF. Thus, "jnz send_interrupts" never jumps. We get interrupts regularly enough that this didn't cause immediate problems. Reported-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
-rw-r--r--arch/x86/lguest/head_32.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/lguest/head_32.S b/arch/x86/lguest/head_32.S
index 6ddfe4f..05b0a85 100644
--- a/arch/x86/lguest/head_32.S
+++ b/arch/x86/lguest/head_32.S
@@ -84,7 +84,7 @@ ENTRY(lg_irq_enable)
* set lguest_data.irq_pending to X86_EFLAGS_IF. If it's not zero, we
* jump to send_interrupts, otherwise we're done.
*/
- testl $0, lguest_data+LGUEST_DATA_irq_pending
+ cmpl $0, lguest_data+LGUEST_DATA_irq_pending
jnz send_interrupts
/*
* One cool thing about x86 is that you can do many things without using
OpenPOWER on IntegriCloud