Messages in this thread Patch in this message | | | Date | Wed, 29 Apr 2009 11:04:27 GMT | From | tip-bot for Stuart Bennett <> | Subject | [tip:tracing/urgent] tracing: x86, mmiotrace: fix range test |
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Commit-ID: 33015c85995716d03f6293346cf05a1908b0fb9a Gitweb: http://git.kernel.org/tip/33015c85995716d03f6293346cf05a1908b0fb9a Author: Stuart Bennett <stuart@freedesktop.org> AuthorDate: Tue, 28 Apr 2009 20:17:48 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Wed, 29 Apr 2009 11:32:22 +0200
tracing: x86, mmiotrace: fix range test
Matching on (addr == (p->addr + p->len)) causes problems when mappings are adjacent.
[ Impact: fix mmiotrace confusion on adjacent iomaps ]
Signed-off-by: Stuart Bennett <stuart@freedesktop.org> Acked-by: Pekka Paalanen <pq@iki.fi> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1240946271-7083-2-git-send-email-stuart@freedesktop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
--- arch/x86/mm/kmmio.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c index 4f115e0..50dc802 100644 --- a/arch/x86/mm/kmmio.c +++ b/arch/x86/mm/kmmio.c @@ -87,7 +87,7 @@ static struct kmmio_probe *get_kmmio_probe(unsigned long addr) { struct kmmio_probe *p; list_for_each_entry_rcu(p, &kmmio_probes, list) { - if (addr >= p->addr && addr <= (p->addr + p->len)) + if (addr >= p->addr && addr < (p->addr + p->len)) return p; } return NULL;
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