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| author | afzal mohammed <afzal.mohd.ma@gmail.com> | 2020-03-04 01:50:48 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-03-11 14:18:44 +0100 |
| commit | 8719b6d29d2851fa84c4074bb2e5adc022911ab8 (patch) | |
| tree | d825a8fdbe5581a1496a9dadc5498d6eb14995bd /drivers/s390/cio/cio.c | |
| parent | s390/cpuinfo: add system topology information (diff) | |
| download | linux-8719b6d29d2851fa84c4074bb2e5adc022911ab8.tar.xz linux-8719b6d29d2851fa84c4074bb2e5adc022911ab8.zip | |
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 '')
| -rw-r--r-- | drivers/s390/cio/cio.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 18f5458f90e8..6d716db2a46a 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -563,16 +563,12 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy) return IRQ_HANDLED; } -static struct irqaction io_interrupt = { - .name = "I/O", - .handler = do_cio_interrupt, -}; - void __init init_cio_interrupts(void) { irq_set_chip_and_handler(IO_INTERRUPT, &dummy_irq_chip, handle_percpu_irq); - setup_irq(IO_INTERRUPT, &io_interrupt); + if (request_irq(IO_INTERRUPT, do_cio_interrupt, 0, "I/O", NULL)) + panic("Failed to register I/O interrupt\n"); } #ifdef CONFIG_CCW_CONSOLE |