On Thursday 08 October 2015 04:03:32 David Miller wrote:
> From: Arnd Bergmann <a...@arndb.de>
> Date: Tue, 06 Oct 2015 22:52:46 +0200
>
> > Commit 124613012db1 ("af_unix: Convert the unix_sk macro to an inline
> > function for type safety") was recently added to catch incorrect
> > uses of the unix_sk helper using compiler warnings.
> >
> > It has now caught one such case in lsm_audit.c. The code is technically
> > correct, but as it converts a const pointer to a non-const pointer,
> > the annotation got lost, which gcc now warns about.
> >
> > This patch avoids the warning by introducing an additional helper
> > that has const input and output, which makes the lsm_audit code build
> > cleanly again.
> >
> > Signed-off-by: Arnd Bergmann <a...@arndb.de>
> > ---
> > I'm not entirely happy with this workaround myself, but could not come
> > up with a better one.
>
> You can make the argument unconditionally const, as Paul Moore has done
> in a separate patch submission.
Ok, I see now how Paul's "audit: constify parts of common_audit_data and
lsm_network_audit" patch caused the problem and is now gone from linux-next.
That seems nicer indeed.
Arnd
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