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| author | Jan Beulich <jbeulich@suse.com> | 2012-07-30 13:38:58 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2012-07-30 13:38:58 +0100 |
| commit | a0515fe8945ee06277408109d86bd5aaac77412f (patch) | |
| tree | 03e4fe65b27851ce96b4162a2f3c9f021f396c5d | |
| parent | 0abe4ea8231717dd7eaf74db694e061584fb687f (diff) | |
| download | xen-a0515fe8945ee06277408109d86bd5aaac77412f.tar.gz xen-a0515fe8945ee06277408109d86bd5aaac77412f.tar.bz2 xen-a0515fe8945ee06277408109d86bd5aaac77412f.zip | |
x86: fix off-by-one in nr_irqs_gsi calculation
highest_gsi() returns the last valid GSI, not a count.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Joe Jin <joe.jin@oracle.com>
Acked-by: Keir Fraser <keir@xen.org>
xen-unstable changeset: 25688:e6266fc76d08
xen-unstable date: Fri Jul 27 12:22:13 2012 +0200
| -rw-r--r-- | xen/arch/x86/io_apic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c index e6b623ed32..b3b51b3532 100644 --- a/xen/arch/x86/io_apic.c +++ b/xen/arch/x86/io_apic.c @@ -2665,7 +2665,7 @@ void __init init_ioapic_mappings(void) } } - nr_irqs_gsi = max(nr_irqs_gsi, highest_gsi()); + nr_irqs_gsi = max(nr_irqs_gsi, highest_gsi() + 1); if ( max_gsi_irqs == 0 ) max_gsi_irqs = nr_irqs ? nr_irqs / 8 : PAGE_SIZE; |