linux-kernel - Re: [PATCH v2 03/12] mmc: mmc_test: add test for none blocking transfers

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Date:	Sun, 17 Apr 2011 23:46:23 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Per Forlin <per.forlin@...aro.org>
CC:	<linux-mmc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linaro-dev@...ts.linaro.org>,
	Chris Ball <cjb@...top.org>
Subject: Re: [PATCH v2 03/12] mmc: mmc_test: add test for none blocking
 transfers

On Wed, Apr 06, 2011 at 09:07:04PM +0200, Per Forlin wrote:
[...]
> +static int mmc_test_rw_multiple(struct mmc_test_card *test,
> +				struct mmc_test_multiple_rw *tdata,
> +				unsigned int reqsize, unsigned int size)
> +{
> +	unsigned int dev_addr;
> +	struct mmc_test_area *t = &test->area;
> +	int ret = 0;
> +	int max_reqsize = max(t->mem->size_min_cmn *
> +			      min(t->max_segs, t->mem->cnt), t->max_tfr);
> +
The 'max(..., t->max_tfr)' probably should be 'min(..., t->max_tfr)'.
Otherwise, I see mmc_test failure on my mxs-mmc setup.

mmc0: Test case 37. Write performance with blocking req 4k to 4MB...
mmc0: Transfer of 64 x 2048 sectors (64 x 1024 KiB) took 5.412563314 seconds (12
398 kB/s, 12108 KiB/s, 11.82 IOPS)
mmc0: Failed to map sg list
[mmc_test_rw_multiple] error
mmc0: Result: ERROR (-22)

-- 
Regards,
Shawn

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