Re: [PATCH net] psp: use unrcu_pointer() for the cmpxchg() on netdev psp_dev

On 8/13/26 3:34 PM, Wei Wang wrote:
> From: Wei Wang <[email protected]>
> 
> sparse reports:
> 
>    net/psp/psp_nl.c:513:13: sparse: sparse: cast removes address space
>    '__rcu' of expression
> 
> cmpxchg() returns typeof(*ptr) and its internal casts strip the __rcu
> annotation. Wrap it in unrcu_pointer(), the documented way to use an
> __rcu pointer with xchg() and friends.
> 
> This was introduced by commit 06c2dce2d0f6 ("psp: add new netlink cmd
> for dev-assoc and dev-disassoc").
> 
> No functional change intended.
> 
> Reported-by: kernel test robot <[email protected]>
> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
> Signed-off-by: Wei Wang <[email protected]>
Commits targeting the net tree need a fixes tag.