From a681887f7b0f8b7698e4b22f1191015424fa96e4 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Mon, 26 Sep 2011 16:40:35 +0200 Subject: [PATCH] [S390] cio: fix cio_tpi ignoring adapter interrupts Ensure that adapter interrupts are correctly processed when they are retrieved using TEST PENDING INTERRUPTION. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/cio.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index cbde448f9947..eb3140ee821e 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -654,8 +654,8 @@ static struct io_subchannel_private console_priv; static int console_subchannel_in_use; /* - * Use tpi to get a pending interrupt, call the interrupt handler and - * return a pointer to the subchannel structure. + * Use cio_tpi to get a pending interrupt and call the interrupt handler. + * Return non-zero if an interrupt was processed, zero otherwise. */ static int cio_tpi(void) { @@ -667,6 +667,10 @@ static int cio_tpi(void) tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id; if (tpi(NULL) != 1) return 0; + if (tpi_info->adapter_IO) { + do_adapter_IO(tpi_info->isc); + return 1; + } irb = (struct irb *)&S390_lowcore.irb; /* Store interrupt response block to lowcore. */ if (tsch(tpi_info->schid, irb) != 0) -- 2.30.2