The patch titled
Subject: dma-debug: skip debug_dma_assert_idle() when disabled
has been added to the -mm tree. Its filename is
dma-debug-skip-debug_dma_assert_idle-when-disabled.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/dma-debug-skip-debug_dma_assert_idle-when-disabled.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/dma-debug-skip-debug_dma_assert_idle-when-disabled.patch
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------------------------------------------------------
From: Haggai Eran <[email protected]>
Subject: dma-debug: skip debug_dma_assert_idle() when disabled
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.
Signed-off-by: Haggai Eran <[email protected]>
Fixes: 0abdd7a81b7e ("dma-debug: introduce debug_dma_assert_idle()")
Cc: Dan Williams <[email protected]>
Cc: Joerg Roedel <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Russell King <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Sebastian Ott <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Horia Geanta <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
lib/dma-debug.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN lib/dma-debug.c~dma-debug-skip-debug_dma_assert_idle-when-disabled
lib/dma-debug.c
--- a/lib/dma-debug.c~dma-debug-skip-debug_dma_assert_idle-when-disabled
+++ a/lib/dma-debug.c
@@ -574,6 +574,9 @@ void debug_dma_assert_idle(struct page *
unsigned long flags;
phys_addr_t cln;
+ if (dma_debug_disabled())
+ return;
+
if (!page)
return;
_
Patches currently in -mm which might be from [email protected] are
dma-debug-skip-debug_dma_assert_idle-when-disabled.patch
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