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Subject[tip:tracing/urgent] tracing: x86, mmiotrace: fix range test
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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