From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 19 Jan 2009 21:39:10 +0000 (-0700)
Subject: dmaengine: kill some dubious WARN_ONCEs
X-Git-Tag: v2.6.29-rc3~34^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83436a0560e9ef8af2f0796264dde4bed1415359;p=pandora-kernel.git

dmaengine: kill some dubious WARN_ONCEs

dma_find_channel and dma_issue_pending_all are good places to warn about
improper api usage.  However, warning correctly means synchronizing with
dma_list_mutex, i.e. too much overhead for these fast-path calls.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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