psp: use unrcu_pointer() for the cmpxchg() on netdev psp_dev

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 <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202608080910.l9KvOH7O-lkp@intel.com/
Signed-off-by: Wei Wang <weibunny@fb.com>
Link: https://patch.msgid.link/20260813193416.1544518-1-weibunny.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions