/*
* 6LoWPAN IPv6 Fragment Header compression according to RFC6282
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_FRAGMENT_IDLEN 1
#define LOWPAN_NHC_FRAGMENT_ID_0 0xe4
#define LOWPAN_NHC_FRAGMENT_MASK_0 0xfe
static void fragment_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_FRAGMENT_ID_0;
nhc->idmask[0] = LOWPAN_NHC_FRAGMENT_MASK_0;
}
LOWPAN_NHC(nhc_fragment, "RFC6282 Fragment", NEXTHDR_FRAGMENT, 0,
fragment_nhid_setup, LOWPAN_NHC_FRAGMENT_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_fragment);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Fragment compression");
MODULE_LICENSE("GPL");
ss='form'>
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.
Fix it by deactivating the interrupt before activating the new configuration.
Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos