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Commit 5ee00bd4 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

dma-debug: add Kconfig entry 



Impact: add a Kconfig entry for DMA-API debugging

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 0bd5c4f7

arch/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -106,3 +106,5 @@ config HAVE_CLK 
	  The <linux/clk.h> calls support software clock gating and

	  thus are a key power management tool on many systems.



config HAVE_DMA_API_DEBUG

	bool

lib/Kconfig.debug

+11 −0
Original line number Diff line number Diff line
@@ -902,6 +902,17 @@ config DYNAMIC_PRINTK_DEBUG 
	  debugging for all modules. This mode can be turned off via the above

	  disable command.



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"