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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-08-19 16:53:41 -0600
committerLen Brown <len.brown@intel.com>2008-10-10 23:33:53 -0400
commit97ef062bbe08f46903f29ecdf432be302c977f3b (patch)
treee09e9a171ac2d3c79db945ee95145f17cdce82df /drivers/pnp/core.c
parent2663f60d434139298835af690f4891cec5c1e501 (diff)
downloadlinux-linaro-stable-97ef062bbe08f46903f29ecdf432be302c977f3b.tar.gz
PNP: add CONFIG_PNP_DEBUG_MESSAGES and pnp_dbg()
This adds the core function pnp_dbg() and a new config option to enable it. The PNP core debugging messages can be enabled at boot-time with the "pnp.debug" kernel parameter. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pnp/core.c')
-rw-r--r--drivers/pnp/core.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index 7cb1ffc14d4e..61291b5bfe12 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -221,3 +221,14 @@ static int __init pnp_init(void)
}
subsys_initcall(pnp_init);
+
+int pnp_debug;
+
+#if defined(CONFIG_PNP_DEBUG_MESSAGES)
+static int __init pnp_debug_setup(char *__unused)
+{
+ pnp_debug = 1;
+ return 1;
+}
+__setup("pnp.debug", pnp_debug_setup);
+#endif