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Subject: Re: [PATCH v4 5/5] mtd: Add several functions to the fail_function
 list
To:     ZhaoLong Wang <wangzhaolong1@huawei.com>,
        <miquel.raynal@bootlin.com>, <richard@nod.at>, <vigneshr@ti.com>
CC:     <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
        <yi.zhang@huawei.com>, <yangerkun@huawei.com>
References: <20231103065536.3778940-1-wangzhaolong1@huawei.com>
 <20231103065536.3778940-6-wangzhaolong1@huawei.com>
From:   Zhihao Cheng <chengzhihao1@huawei.com>
Message-ID: <3a358dd2-a923-a55f-5803-7e97c1178dad@huawei.com>
Date:   Fri, 3 Nov 2023 19:39:23 +0800
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?? 2023/11/3 14:55, ZhaoLong Wang д??:
> add mtd_read(), mtd_write(), mtd_erase(), mtd_block_markbad() to
> fail_function list for testing purpose
> 
> - Specify the function to inject the fault
> echo mtd_read > /sys/kernel/debug/fail_function/inject
> 
> - Specifies the return value of the function to inject the fault
> printf %#x -12 > /sys/kernel/debug/fail_function/mtd_read/retval
> 
> - Specify other fault injection configuration parameters.
> echo -1 > /sys/kernel/debug/fail_function/times
> echo 100 > /sys/kernel/debug/fail_function/probability
> echo 15 > /sys/kernel/debug/fail_function/space
> 
> Signed-off-by: ZhaoLong Wang <wangzhaolong1@huawei.com>
> ---
>   drivers/mtd/mtdcore.c | 5 +++++
>   1 file changed, 5 insertions(+)
> 

Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>