linux-kernel - Re: [tpmdd-devel] [PATCH 2/5 v2] tpm: Pull everything related to sysfs into tpm-sysfs.c

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Date:	Sat, 16 Nov 2013 17:53:19 -0600
From:	Ashley Lai <adlai@...ux.vnet.ibm.com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:	tpmdd-devel@...ts.sourceforge.net, Peter Huewe <peterhuewe@....de>,
	linux-kernel@...r.kernel.org
Subject: Re: [tpmdd-devel] [PATCH 2/5 v2] tpm: Pull everything related to
 sysfs into tpm-sysfs.c

> diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
> new file mode 100644
> index 0000000..3bcfed0
> --- /dev/null
> +++ b/drivers/char/tpm/tpm-sysfs.c
> @@ -0,0 +1,318 @@
> + * Copyright (C) 2013 Obsidian Reearch Corp
Typo Research?
> + * Jason Gunthorpe <jgunthorpe@...idianresearch.com>
> + *

> +#include "tpm.h"
> +
> +/* XXX for now this helper is duplicated in tpm.c */

I think you mean this is duplicated in tpm-interface.c.  Is there a
reason why we cannot add this to tpm.h to avoid this duplication?

> +static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
> +			    int len, const char *desc)
> +{

> +static ssize_t pubek_show(struct device *dev, struct device_attribute *attr,
> +			  char *buf)

Most of the functions in this file are moved from tpm-interface.c
without any modification to the code.  Why do we need to change the
function names in this file?  Unless there is a good reason for it
otherwise I would prefer to keep the same function names.  This is for
easy maintaining (for me at least :)) in case there are issues in the
future and we need to go back we can easily find out where they came
from.

Thanks,
--Ashley Lai

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