[dpdk-dev] [PATCH] eal: fix max number of interrupt request

[Qi Zhang]

The max number of interrupt request is possible
be changed after rte_intr_callback_register, so
in get_max_intr, we need to check if nessesary to
update the max_intr.

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 lib/librte_eal/linuxapp/eal/eal_interrupts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index b5b3f2b..92a19cb 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -287,6 +287,8 @@ get_max_intr(const struct rte_intr_handle *intr_handle)
 		if (src->intr_handle.fd != intr_handle->fd)
 			continue;
 
+		if (src->intr_handle.max_intr < intr_handle->max_intr)
+			src->intr_handle.max_intr = intr_handle->max_intr;
 		if (!src->intr_handle.max_intr)
 			src->intr_handle.max_intr = 1;
 		else if (src->intr_handle.max_intr > RTE_MAX_RXTX_INTR_VEC_ID)
-- 
2.7.4