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PNP: add CONFIG_PNP_DEBUG_MESSAGES and pnp_dbg()

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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>
This commit is contained in:
Bjorn Helgaas
2008-08-19 16:53:41 -06:00
committed by Len Brown
parent 2663f60d43
commit 97ef062bbe
4 changed files with 39 additions and 0 deletions
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11
drivers/pnp/core.c
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@@ -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