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authorafzal mohammed <afzal.mohd.ma@gmail.com>2020-03-04 06:20:48 +0530
committerVasily Gorbik <gor@linux.ibm.com>2020-03-11 14:18:44 +0100
commit8719b6d29d2851fa84c4074bb2e5adc022911ab8 (patch)
treed825a8fdbe5581a1496a9dadc5498d6eb14995bd /drivers/s390/cio/airq.c
parentfb83510295d7a6cdeb46242515c3180f9adafc85 (diff)
downloadlinux-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 'drivers/s390/cio/airq.c')
-rw-r--r--drivers/s390/cio/airq.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index 427b2e24a8ce..cb466ed7eb5e 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -105,16 +105,12 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irqaction airq_interrupt = {
- .name = "AIO",
- .handler = do_airq_interrupt,
-};
-
void __init init_airq_interrupts(void)
{
irq_set_chip_and_handler(THIN_INTERRUPT,
&dummy_irq_chip, handle_percpu_irq);
- setup_irq(THIN_INTERRUPT, &airq_interrupt);
+ if (request_irq(THIN_INTERRUPT, do_airq_interrupt, 0, "AIO", NULL))
+ panic("Failed to register AIO interrupt\n");
}
static inline unsigned long iv_size(unsigned long bits)