From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh.kumar@st.com (Viresh Kumar) Date: Mon, 6 Feb 2012 13:41:40 +0530 Subject: [PATCH V3 08/12] dmaengine/dw_dmac: Unmap all memory buffers after completion of non-slave transfers In-Reply-To: <20120202121523.GG889@n2100.arm.linux.org.uk> References: <20120202121523.GG889@n2100.arm.linux.org.uk> Message-ID: <4F2F8B3C.7050107@st.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2/2/2012 5:45 PM, Russell King - ARM Linux wrote: > I'm still unconvinced that this is anywhere close to correct. > > Look. DMA engines only automatically unmap when they're being used by the > async_tx stuff for memcpy's, and RAID computation offload, and the like. > These work with individual single buffers, not scatterlists. These will > not be fragmented. Got it. You are right. @Vinod: Please drop this patch. -- viresh