[dpdk-dev] [EXT] [PATCH] event/cnxk: fix clang warning on Arm

[Pavan Nikhilesh Bhagavatula]

>-----Original Message-----
>From: Ruifeng Wang <ruifeng.wang at arm.com>
>Sent: Thursday, June 10, 2021 12:55 PM
>To: Pavan Nikhilesh Bhagavatula <pbhagavatula at marvell.com>; Shijith
>Thotton <sthotton at marvell.com>
>Cc: dev at dpdk.org; nd at arm.com; Ruifeng Wang
><ruifeng.wang at arm.com>
>Subject: [EXT] [PATCH] event/cnxk: fix clang warning on Arm
>
>External Email
>
>----------------------------------------------------------------------
>Build with Clang-10 has warning:
>drivers/event/cnxk/cnxk_tim_worker.h:372:23: warning: value size
>does not match register size specified by the constraint and modifier [-
>Wasm-operand-widths]
>                             : [rem] "=&r"(rem)
>                                           ^
>drivers/event/cnxk/cnxk_tim_worker.h:365:17: note: use constraint
>modifier "w"
>                             "          ldxr %[rem], [%[crem]]  \n"
>                                             ^~~~~~
>                                             %w[rem]
>
>Changed variable type to match register size, which placates clang.
>
>Fixes: 300b796262a1 ("event/cnxk: add timer arm routine")
>Cc: pbhagavatula at marvell.com
>
>Signed-off-by: Ruifeng Wang <ruifeng.wang at arm.com>

LGTM, thanks.

Acked-by: Pavan Nikhilesh <pbhagavatula at marvell.com>

>---
> drivers/event/cnxk/cnxk_tim_worker.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/event/cnxk/cnxk_tim_worker.h
>b/drivers/event/cnxk/cnxk_tim_worker.h
>index 7caeb1a8fb..78e36ffafe 100644
>--- a/drivers/event/cnxk/cnxk_tim_worker.h
>+++ b/drivers/event/cnxk/cnxk_tim_worker.h
>@@ -320,7 +320,7 @@ cnxk_tim_add_entry_mp(struct cnxk_tim_ring
>*const tim_ring,
> 	struct cnxk_tim_ent *chunk;
> 	struct cnxk_tim_bkt *bkt;
> 	uint64_t lock_sema;
>-	int16_t rem;
>+	int64_t rem;
>
> __retry:
> 	cnxk_tim_get_target_bucket(tim_ring, rel_bkt, &bkt,
>&mirr_bkt);
>--
>2.25.1