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* [PATCH] app/dumpcap: replace use of __builtin_clzl
@ 2024-10-16 20:51 Stephen Hemminger
  2024-10-30 10:24 ` David Marchand
  0 siblings, 1 reply; 2+ messages in thread
From: Stephen Hemminger @ 2024-10-16 20:51 UTC (permalink / raw)
  To: dev; +Cc: Stephen Hemminger

DPDK applications should avoid direct use of compiler builtin.

Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/dumpcap/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/dumpcap/main.c b/app/dumpcap/main.c
index cb2a439f79..9ca578e27e 100644
--- a/app/dumpcap/main.c
+++ b/app/dumpcap/main.c
@@ -677,7 +677,7 @@ static struct rte_ring *create_ring(void)
 
 	/* Find next power of 2 >= size. */
 	size = ring_size;
-	log2 = sizeof(size) * 8 - __builtin_clzl(size - 1);
+	log2 = sizeof(size) * 8 - rte_clz64(size - 1);
 	size = 1u << log2;
 
 	if (size != ring_size) {
-- 
2.45.2


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] app/dumpcap: replace use of __builtin_clzl
  2024-10-16 20:51 [PATCH] app/dumpcap: replace use of __builtin_clzl Stephen Hemminger
@ 2024-10-30 10:24 ` David Marchand
  0 siblings, 0 replies; 2+ messages in thread
From: David Marchand @ 2024-10-30 10:24 UTC (permalink / raw)
  To: Stephen Hemminger; +Cc: dev

On Wed, Oct 16, 2024 at 10:52 PM Stephen Hemminger
<stephen@networkplumber.org> wrote:
>
> DPDK applications should avoid direct use of compiler builtin.
>
> Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")
>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Applied, thanks.


-- 
David Marchand


^ permalink raw reply	[flat|nested] 2+ messages in thread

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