Messages in this thread Patch in this message | | | From | Haggai Eran <> | Subject | [PATCH] dma-debug: skip debug_dma_assert_idle() when disabled | Date | Wed, 15 Jul 2015 17:59:33 +0300 |
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If dma-debug is disabled due to a memory error, DMA unmaps do not affect the dma_active_cacheline radix tree anymore, and debug_dma_assert_idle() can print false warnings.
Disable debug_dma_assert_idle() when dma_debug_disabled() is true.
Fixes: 0abdd7a81b7e ("dma-debug: introduce debug_dma_assert_idle()") Cc: Dan Williams <dan.j.williams@intel.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: James Bottomley <JBottomley@Parallels.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Haggai Eran <haggaie@mellanox.com> --- lib/dma-debug.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index ae4b65e17e64..dace71fe41f7 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -574,6 +574,9 @@ void debug_dma_assert_idle(struct page *page) unsigned long flags; phys_addr_t cln; + if (dma_debug_disabled()) + return; + if (!page) return; -- 1.7.11.2
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