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SubjectRe: [RFC][PATCH 2/4] lsm: Add missing return values doc in lsm_hooks.h and fix formatting
On Wed, Nov 16, 2022 at 3:07 AM Roberto Sassu
<roberto.sassu@huaweicloud.com> wrote:
>
> On Tue, 2022-11-15 at 21:23 -0500, Paul Moore wrote:
> > On Tue, Nov 15, 2022 at 12:57 PM Roberto Sassu
> > <roberto.sassu@huaweicloud.com> wrote:
> > > From: Roberto Sassu <roberto.sassu@huawei.com>
> > >
> > > Ensure that for non-void LSM hooks there is a description of the return
> > > values. Also replace spaces with tab for indentation, remove empty lines
> > > between the hook description and the list of parameters and add the period
> > > at the end of the parameter description.
> > >
> > > Finally, replace the description of the sb_parse_opts_str hook, which was
> > > removed with commit 757cbe597fe8 ("LSM: new method: ->sb_add_mnt_opt()"),
> > > with one for the new hook sb_add_mnt_opt.
> > >
> > > Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> > > ---
> > > include/linux/lsm_hooks.h | 123 ++++++++++++++++++++++++++------------
> > > 1 file changed, 86 insertions(+), 37 deletions(-)
> >
> > ...
> >
> > > diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
> > > index f40b82ca91e7..c0c570b7eabd 100644
> > > --- a/include/linux/lsm_hooks.h
> > > +++ b/include/linux/lsm_hooks.h
> > > @@ -176,18 +183,22 @@
> > > * Set the security relevant mount options used for a superblock
> > > * @sb the superblock to set security mount options for
> > > * @opts binary data structure containing all lsm mount data
> > > + * Return 0 on success, error on failure.
> > > * @sb_clone_mnt_opts:
> > > * Copy all security options from a given superblock to another
> > > * @oldsb old superblock which contain information to clone
> > > * @newsb new superblock which needs filled in
> > > - * @sb_parse_opts_str:
> > > - * Parse a string of security data filling in the opts structure
> > > - * @options string containing all mount options known by the LSM
> > > - * @opts binary data structure usable by the LSM
> > > + * Return 0 on success, error on failure.
> > > + * @add_mnt_opt:
> > > + * Add a new mount option @option with value @val and length @len to the
> > > + * existing mount options @mnt_opts.
> > > + * Return 0 if the option was successfully added, a negative value
> > > + * otherwise.
> >
> > I really appreciate the effort to improve the LSM hook comments/docs,
> > but the "sb_add_mnt_opt" hook was removed in 52f982f00b22
> > ("security,selinux: remove security_add_mnt_opt()").
>
> Right, sorry, didn't notice.

No problem. I just wanted to make it clear that I really like this
patch, and if you can fix the above and double-check the others I'll
gladly merge this. As a general rule I *love* doc improvements :)

--
paul-moore.com

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