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dma-debug: add Kconfig entry
Impact: add a Kconfig entry for DMA-API debugging Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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@ -106,3 +106,5 @@ config HAVE_CLK
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The <linux/clk.h> calls support software clock gating and
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thus are a key power management tool on many systems.
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config HAVE_DMA_API_DEBUG
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bool
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@ -902,6 +902,17 @@ config DYNAMIC_PRINTK_DEBUG
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debugging for all modules. This mode can be turned off via the above
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disable command.
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config DMA_API_DEBUG
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bool "Enable debugging of DMA-API usage"
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depends on HAVE_DMA_API_DEBUG
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help
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Enable this option to debug the use of the DMA API by device drivers.
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With this option you will be able to detect common bugs in device
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drivers like double-freeing of DMA mappings or freeing mappings that
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were never allocated.
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This option causes a performance degredation. Use only if you want
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to debug device drivers. If unsure, say N.
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source "samples/Kconfig"
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source "lib/Kconfig.kgdb"
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