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| author | Kevin Hilman <khilman@linaro.org> | 2015-10-13 16:30:38 -0700 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-10-13 16:30:38 -0700 |
| commit | 575afa2b6b9b628766618f3da6c7289ab32f5661 (patch) | |
| tree | d4a23ddffc524e15b9a68b1aefa44da967fe7dd8 /arch/parisc/kernel/irq.c | |
| parent | c765e5c15e7d23d2b8b37fafdafc63c0ea75fabf (diff) | |
| parent | 1230ae0e99e05ced8a945a1a2c5762ce5c6c97c9 (diff) | |
Merge tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.14lsk-v3.14-15.10
This is the 3.14.54 stable release
* tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (115 commits)
Linux 3.14.54
NVMe: Initialize device reference count earlier
udf: Check length of extended attributes and allocation descriptors
x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection
x86/nmi/64: Reorder nested NMI checks
x86/nmi/64: Improve nested NMI comments
x86/nmi/64: Switch stacks on userspace NMI entry
x86/nmi/64: Remove asm code that saves CR2
x86/nmi: Enable nested do_nmi() handling for 64-bit kernels
Revert "iio: bmg160: IIO_BUFFER and IIO_TRIGGERED_BUFFER are required"
net: gso: use feature flag argument in all protocol gso handlers
bna: fix interrupts storm caused by erroneous packets
udp: fix dst races with multicast early demux
rds: fix an integer overflow test in rds_info_getsockopt()
packet: missing dev_put() in packet_do_bind()
fib_rules: fix fib rule dumps across multiple skbs
openvswitch: Zero flows on allocation.
sctp: fix race on protocol/netns initialization
netlink, mmap: transform mmap skb into full skb on taps
net/ipv6: Correct PIM6 mrt_lock handling
...
Diffstat (limited to 'arch/parisc/kernel/irq.c')
| -rw-r--r-- | arch/parisc/kernel/irq.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 8ceac4785609..1ce320e4d3d8 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -507,8 +507,8 @@ void do_cpu_irq_mask(struct pt_regs *regs) struct pt_regs *old_regs; unsigned long eirr_val; int irq, cpu = smp_processor_id(); -#ifdef CONFIG_SMP struct irq_desc *desc; +#ifdef CONFIG_SMP cpumask_t dest; #endif @@ -521,8 +521,12 @@ void do_cpu_irq_mask(struct pt_regs *regs) goto set_out; irq = eirr_to_irq(eirr_val); -#ifdef CONFIG_SMP + /* Filter out spurious interrupts, mostly from serial port at bootup */ desc = irq_to_desc(irq); + if (unlikely(!desc->action)) + goto set_out; + +#ifdef CONFIG_SMP cpumask_copy(&dest, desc->irq_data.affinity); if (irqd_is_per_cpu(&desc->irq_data) && !cpu_isset(smp_processor_id(), dest)) { |