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SubjectRe: [PATCH] seq_file: Allow private data to be supplied on seq_open
On Tue, Jul 29, 2014 at 06:39:53PM +0100, Rob Jones wrote:

> At the moment these consumers have to obtain the struct seq_file pointer
> (stored by seq_open() in file->private_data) and then store a pointer to
> their own data in the private field of the struct seq_file so that it
> can be accessed by the iterator functions.
>
> Although this is not a long piece of code it is unneccessary boilerplate.

How many of those do we actually have?

> seq_open() remains in place and its behaviour remains unchanged so no
> existing code should be broken by this patch.

I have no objections against such helper, but I's rather have it
implemented via seq_open() (and as a static inline, not an export),
not the other way round. Oh, and conversion of at least some users would
be nice to have as well...


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