X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FKconfig.debug;h=9638d99644afe4b5ff04d4ac8fcd194d1b67f614;hb=1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b;hp=0626fa4856e6c80d45321606c025da5b28f83842;hpb=9ff9a26b786c35ee8d2a66222924a807ec851a9f;p=linux-2.6-omap-h63xx.git

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 0626fa4856e..9638d99644a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -796,6 +796,7 @@ config SYSCTL_SYSCALL_CHECK
 	  to properly maintain and use. This enables checks that help
 	  you to keep things correct.
 
+source mm/Kconfig.debug
 source kernel/trace/Kconfig
 
 config PROVIDE_OHCI1394_DMA_INIT
@@ -912,6 +913,17 @@ config DYNAMIC_DEBUG
 
 	  See Documentation/dynamic-debug-howto.txt for additional information.
 
+config DMA_API_DEBUG
+	bool "Enable debugging of DMA-API usage"
+	depends on HAVE_DMA_API_DEBUG
+	help
+	  Enable this option to debug the use of the DMA API by device drivers.
+	  With this option you will be able to detect common bugs in device
+	  drivers like double-freeing of DMA mappings or freeing mappings that
+	  were never allocated.
+	  This option causes a performance degredation.  Use only if you want
+	  to debug device drivers. If unsure, say N.
+
 source "samples/Kconfig"
 
 source "lib/Kconfig.kgdb"