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authorJason Wessel <jason.wessel@windriver.com>2015-01-08 15:46:55 -0600
committerJason Wessel <jason.wessel@windriver.com>2015-02-19 12:39:02 -0600
commitdf0036d117e6c9df36324e517728e33543065f9a (patch)
treec1b944a4cbbe24ec31103ee2e229a17c561293ce /kernel/debug
parent146755923262037fc4c54abc28c04b1103f3cc51 (diff)
downloadlinux-df0036d117e6c9df36324e517728e33543065f9a.tar.bz2
kdb: Fix off by one error in kdb_cpu()
There was a follow on replacement patch against the prior "kgdb: Timeout if secondary CPUs ignore the roundup". See: https://lkml.org/lkml/2015/1/7/442 This patch is the delta vs the patch that was committed upstream: * Fix an off-by-one error in kdb_cpu(). * Replace NR_CPUS with CONFIG_NR_CPUS to tell checkpatch that we really want a static limit. * Removed the "KGDB: " prefix from the pr_crit() in debug_core.c (kgdb-next contains a patch which introduced pr_fmt() to this file to the tag will now be applied automatically). Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'kernel/debug')
-rw-r--r--kernel/debug/debug_core.c2
-rw-r--r--kernel/debug/kdb/kdb_main.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 07ce18ca71e0..ac5c0f9c7a20 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -604,7 +604,7 @@ return_normal:
online_cpus)
cpu_relax();
if (!time_left)
- pr_crit("KGDB: Timed out waiting for secondary CPUs.\n");
+ pr_crit("Timed out waiting for secondary CPUs.\n");
/*
* At this point the primary processor is completely
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index c6d2c0b1565d..60f6bb817f70 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2256,7 +2256,7 @@ static int kdb_cpu(int argc, const char **argv)
/*
* Validate cpunum
*/
- if ((cpunum > NR_CPUS) || !kgdb_info[cpunum].enter_kgdb)
+ if ((cpunum >= CONFIG_NR_CPUS) || !kgdb_info[cpunum].enter_kgdb)
return KDB_BADCPUNUM;
dbg_switch_cpu = cpunum;