Atul Gupta df9d4a1780 net/tls: sleeping function from invalid context ... HW unhash within mutex for registered tls devices cause sleep when called from tcp_set_state for TCP_CLOSE. Release lock and re-acquire after function call with ref count incr/dec. defined kref and fp release for tls_device to ensure device is not released outside lock. BUG: sleeping function called from invalid context at kernel/locking/mutex.c:748 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/7 INFO: lockdep is turned off. CPU: 7 PID: 0 Comm: swapper/7 Tainted: G W O Call Trace: <IRQ> dump_stack+0x5e/0x8b ___might_sleep+0x222/0x260 __mutex_lock+0x5c/0xa50 ? vprintk_emit+0x1f3/0x440 ? kmem_cache_free+0x22d/0x2a0 ? tls_hw_unhash+0x2f/0x80 ? printk+0x52/0x6e ? tls_hw_unhash+0x2f/0x80 tls_hw_unhash+0x2f/0x80 tcp_set_state+0x5f/0x180 tcp_done+0x2e/0xe0 tcp_rcv_state_process+0x92c/0xdd3 ? lock_acquire+0xf5/0x1f0 ? tcp_v4_rcv+0xa7c/0xbe0 ? tcp_v4_do_rcv+0x70/0x1e0 Signed-off-by: Atul Gupta <atul.gupta@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-12-14 13:39:39 -08:00
..
Kconfig	tls: convert to generic sk_msg interface	2018-10-15 12:23:19 -07:00
Makefile	net/tls: Add generic NIC offload infrastructure	2018-05-01 09:42:47 -04:00
tls_device_fallback.c	tls: zero the crypto information from tls_context before freeing	2018-09-13 12:03:47 -07:00
tls_device.c	iov_iter: Separate type from direction and use accessor functions	2018-10-24 00:41:07 +01:00
tls_main.c	net/tls: sleeping function from invalid context	2018-12-14 13:39:39 -08:00
tls_sw.c	Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-11-01 19:58:52 -07:00