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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 20:05:44 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 20:05:44 +0300
commit2962156d5cc0e7f959353d3f5275da7cc3765f06 (patch)
tree3c3ecc9ed9fec7268b66ef0b345ef265b2792cc1
parent6b2282aa372665c14ea1100b63ac0703051407e9 (diff)
parent9d87cd61a6b71ee00b7576a3ebc10208becdbea1 (diff)
downloadlinux-2962156d5cc0e7f959353d3f5275da7cc3765f06.tar.xz
Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 irq fixlet from Ingo Molnar: "A single change that hides the 'HYP:' line in /proc/interrupts when it's unused" * 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/irq: Hide 'HYP:' line in /proc/interrupts when not on Xen/Hyper-V
-rw-r--r--arch/x86/kernel/irq.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 4616672a4049..ae00b355114d 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -139,10 +139,13 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_puts(p, " Machine check polls\n");
#endif
#if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
- seq_printf(p, "%*s: ", prec, "HYP");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count);
- seq_puts(p, " Hypervisor callback interrupts\n");
+ if (test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors)) {
+ seq_printf(p, "%*s: ", prec, "HYP");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ",
+ irq_stats(j)->irq_hv_callback_count);
+ seq_puts(p, " Hypervisor callback interrupts\n");
+ }
#endif
seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
#if defined(CONFIG_X86_IO_APIC)