On 26/11/2021 03:41, Tony Lu wrote: > When applications call shutdown() with SHUT_RDWR in userspace, > smc_close_active() calls kernel_sock_shutdown(), and it is called > twice in smc_shutdown(). > > This fixes this by checking sk_state before do clcsock shutdown, and > avoids missing the application's call of smc_shutdown(). > > Link: https://lore.kernel.org/linux-s390/1f67548e-cbf6-0dce-82b5-10288a4583bd@xxxxxxxxxxxxx/ > Fixes: 606a63c9783a ("net/smc: Ensure the active closing peer first closes clcsock") > Signed-off-by: Tony Lu <tonylu@xxxxxxxxxxxxxxxxx> > Reviewed-by: Wen Gu <guwen@xxxxxxxxxxxxxxxxx> > --- Acked-by: Karsten Graul <kgraul@xxxxxxxxxxxxx>