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Revision 1255fcb2a655f05e02f3a74675a6d6525f187afd authored by Ursula Braun on 19 April 2018, 13:56:40 UTC, committed by David S. Miller on 19 April 2018, 20:38:39 UTC 
net/smc: fix shutdown in state SMC_LISTEN
 
Calling shutdown with SHUT_RD and SHUT_RDWR for a listening SMC socket
crashes, because
   commit 127f49705823 ("net/smc: release clcsock from tcp_listen_worker")
releases the internal clcsock in smc_close_active() and sets smc->clcsock
to NULL.
For SHUT_RD the smc_close_active() call is removed.
For SHUT_RDWR the kernel_sock_shutdown() call is omitted, since the
clcsock is already released.

Fixes: 127f49705823 ("net/smc: release clcsock from tcp_listen_worker")
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent a60faa6
Raw File
arm_psci.h 
/*
 * Copyright (C) 2012,2013 - ARM Ltd
 * Author: Marc Zyngier <marc.zyngier@arm.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __KVM_ARM_PSCI_H__
#define __KVM_ARM_PSCI_H__

#include <linux/kvm_host.h>
#include <uapi/linux/psci.h>

#define KVM_ARM_PSCI_0_1	PSCI_VERSION(0, 1)
#define KVM_ARM_PSCI_0_2	PSCI_VERSION(0, 2)
#define KVM_ARM_PSCI_1_0	PSCI_VERSION(1, 0)

#define KVM_ARM_PSCI_LATEST	KVM_ARM_PSCI_1_0

/*
 * We need the KVM pointer independently from the vcpu as we can call
 * this from HYP, and need to apply kern_hyp_va on it...
 */
static inline int kvm_psci_version(struct kvm_vcpu *vcpu, struct kvm *kvm)
{
	/*
	 * Our PSCI implementation stays the same across versions from
	 * v0.2 onward, only adding the few mandatory functions (such
	 * as FEATURES with 1.0) that are required by newer
	 * revisions. It is thus safe to return the latest.
	 */
	if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features))
		return KVM_ARM_PSCI_LATEST;

	return KVM_ARM_PSCI_0_1;
}


int kvm_hvc_call_handler(struct kvm_vcpu *vcpu);

#endif /* __KVM_ARM_PSCI_H__ */
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