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| author | afzal mohammed <afzal.mohd.ma@gmail.com> | 2020-03-04 06:20:48 +0530 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-03-11 14:18:44 +0100 |
| commit | 8719b6d29d2851fa84c4074bb2e5adc022911ab8 (patch) | |
| tree | d825a8fdbe5581a1496a9dadc5498d6eb14995bd /arch/s390/kernel | |
| parent | fb83510295d7a6cdeb46242515c3180f9adafc85 (diff) | |
| download | linux-8719b6d29d2851fa84c4074bb2e5adc022911ab8.tar.bz2 | |
s390/irq: replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Message-Id: <20200304005049.5291-1-afzal.mohd.ma@gmail.com>
[heiko.carstens@de.ibm.com: replace pr_err with panic]
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/irq.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 8371855042dc..da550cb8b31b 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -294,11 +294,6 @@ static irqreturn_t do_ext_interrupt(int irq, void *dummy) return IRQ_HANDLED; } -static struct irqaction external_interrupt = { - .name = "EXT", - .handler = do_ext_interrupt, -}; - void __init init_ext_interrupts(void) { int idx; @@ -308,7 +303,8 @@ void __init init_ext_interrupts(void) irq_set_chip_and_handler(EXT_INTERRUPT, &dummy_irq_chip, handle_percpu_irq); - setup_irq(EXT_INTERRUPT, &external_interrupt); + if (request_irq(EXT_INTERRUPT, do_ext_interrupt, 0, "EXT", NULL)) + panic("Failed to register EXT interrupt\n"); } static DEFINE_SPINLOCK(irq_subclass_lock); |