From mboxrd@z Thu Jan 1 00:00:00 1970 From: msalter@redhat.com (Mark Salter) Date: Mon, 29 Aug 2011 12:24:48 -0400 Subject: [PATCH] usb: ehci: fix update qtd->token in qh_append_tds In-Reply-To: References: <20110829085209.GB26917@n2100.arm.linux.org.uk> Message-ID: <1314635090.2344.53.camel@deneb.redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, 2011-08-29 at 23:55 +0800, Ming Lei wrote: > If writing to coherent memory can't reach physical memory immediately on > other ARCHs, the problem can still happen on these ARCHs. But I am > not sure if there are these kind of ARCHs except for ARM. If there is write buffering which prevents outside bus masters from seeing the data, can we really call it coherent memory? --Mark