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From: srinivas.kandagatla@linaro.org (Srinivas Kandagatla)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] nvmem: core: set the size for the nvmem binary file.
Date: Wed, 07 Oct 2015 14:21:55 +0100	[thread overview]
Message-ID: <56151C73.90704@linaro.org> (raw)
In-Reply-To: <20151007125612.GB7962@kroah.com>



On 07/10/15 13:56, Greg KH wrote:
> On Wed, Oct 07, 2015 at 12:00:55PM +0100, Srinivas Kandagatla wrote:
>> This patch sets the actual size of binary file to the nvmem size.
>> Previously this was not possible as the core was using the static global
>> data structures for attributes.
>>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>> ---
>>   drivers/nvmem/core.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
>> index 0a70e31..737fa75 100644
>> --- a/drivers/nvmem/core.c
>> +++ b/drivers/nvmem/core.c
>> @@ -315,6 +315,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
>>   	if (!nvmem->read_only)
>>   		nvmem->bin.attr.mode |= S_IWUSR;
>>
>> +	nvmem->bin.size = nvmem->size;
>
> Why does the size matter?  What userspace tool needs to know this?
Yes, you are correct, sized should not matter as read would return EOF 
anyway.
I think I overdone this :-)

--srini
>
> thanks,
>
> greg k-h
>

  reply	other threads:[~2015-10-07 13:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-07 10:58 [PATCH v2 0/3] nvmem: make sysfs binary file permissions more flexible Srinivas Kandagatla
2015-10-07 11:00 ` [PATCH v2 1/3] nvmem: core: make default user binary file root-access only Srinivas Kandagatla
2015-10-07 11:33   ` Russell King - ARM Linux
2015-10-07 13:46     ` Srinivas Kandagatla
2015-10-07 16:23       ` Russell King - ARM Linux
2015-10-07 12:55   ` Greg KH
2015-10-07 13:18     ` Srinivas Kandagatla
2015-10-07 16:12       ` Greg KH
2015-10-07 11:00 ` [PATCH v2 2/3] nvmem: core: set the size for the nvmem binary file Srinivas Kandagatla
2015-10-07 12:56   ` Greg KH
2015-10-07 13:21     ` Srinivas Kandagatla [this message]
2015-10-07 11:01 ` [PATCH v2 3/3] nvmem: core: add sysfs file mode flag in nvmem_config Srinivas Kandagatla
2015-10-07 12:56   ` Greg KH

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