linux-kernel - scatterlist: sg_set_buf() argument must be in linear mapping (sha1: ac4e97abce9b80c020e7113325f49e58b7b15e3f)

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Message-ID: <51E64C6B.3080306@monstr.eu>
Date:	Wed, 17 Jul 2013 09:48:59 +0200
From:	Michal Simek <monstr@...str.eu>
To:	Rusty Russell <rusty@...tcorp.com.au>, Jens Axboe <axboe@...nel.dk>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: scatterlist: sg_set_buf() argument must be in linear mapping (sha1:
 ac4e97abce9b80c020e7113325f49e58b7b15e3f)

Hi Rusty and Jens,

I am getting problem with your patch which you have added to the kernel.
The problem is with my arm zynq remoteproc driver where
I use dma_declare_coherent_memory() to specify memory for remoteproc
which is ioremap to the vmalloc area.

Based on that buf addr is not inside ram even this coherent memory is in ram.
That's why virt_addr_valid(buf) is failing.

Thanks for you input,
Michal
-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform

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