[PATCH v1 3/4] s390x:irq: make IRQ handler weak

Pierre Morel
2019-11-13T12:23:39Z

Having a weak function allows the tests programm to declare its own IRQ
handler.
This is helpfull when developping I/O tests.
---
lib/s390x/interrupt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/s390x/interrupt.c b/lib/s390x/interrupt.c
index 7aecfc5..0049194 100644
--- a/lib/s390x/interrupt.c
+++ b/lib/s390x/interrupt.c
@@ -140,7 +140,7 @@ void handle_mcck_int(sregs_t *regs)
lc->mcck_old_psw.addr);
}

-void handle_io_int(sregs_t *regs)
+__attribute__((weak)) void handle_io_int(sregs_t *regs)
{
report_abort("Unexpected io interrupt: at %#lx",
lc->io_old_psw.addr);
--
2.7.4