linux-kernel - Re: [QUEUED v20180920 15/16] lib: Add memcat

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Date:   Thu, 20 Sep 2018 15:00:00 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [QUEUED v20180920 15/16] lib: Add memcat_p(): paste 2 pointer
 arrays together

On Thu, Sep 20, 2018 at 03:45:52PM +0300, Alexander Shishkin wrote:
> This adds a helper to paste 2 pointer arrays together, useful for merging
> various types of attribute arrays. There are a few places in the kernel
> tree where this is open coded, and I just added one more in the STM class.
> 
> The naming is inspired by memset_p() and memcat(), and partial credit for
> it goes to Andy Shevchenko.
> 
> This patch adds the function wrapped in a type-enforcing macro and a test
> module.
> 
> Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

It would be good to get someone else to review/ack a core function like
this, to verify nothing is incorrect.  Especially given the fun of
off-by-one issues in C we have had over the years...

thanks,

greg k-h