diff options
author | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-09 06:14:24 -0500 |
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committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-03-05 08:36:50 -0500 |
commit | 5ee00bd4691e7364bb7b62e2068d473cd5cb9320 (patch) | |
tree | 5223b3e5baadea873e0b2b5e6b40236de27bd864 /lib | |
parent | 0bd5c4f7c874cf48ff7904dcf8a59988c8fea0e8 (diff) |
dma-debug: add Kconfig entry
Impact: add a Kconfig entry for DMA-API debugging
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Kconfig.debug | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1bcf9cd4baa0..d9cbada7e2f8 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -902,6 +902,17 @@ config DYNAMIC_PRINTK_DEBUG | |||
902 | debugging for all modules. This mode can be turned off via the above | 902 | debugging for all modules. This mode can be turned off via the above |
903 | disable command. | 903 | disable command. |
904 | 904 | ||
905 | config DMA_API_DEBUG | ||
906 | bool "Enable debugging of DMA-API usage" | ||
907 | depends on HAVE_DMA_API_DEBUG | ||
908 | help | ||
909 | Enable this option to debug the use of the DMA API by device drivers. | ||
910 | With this option you will be able to detect common bugs in device | ||
911 | drivers like double-freeing of DMA mappings or freeing mappings that | ||
912 | were never allocated. | ||
913 | This option causes a performance degredation. Use only if you want | ||
914 | to debug device drivers. If unsure, say N. | ||
915 | |||
905 | source "samples/Kconfig" | 916 | source "samples/Kconfig" |
906 | 917 | ||
907 | source "lib/Kconfig.kgdb" | 918 | source "lib/Kconfig.kgdb" |