From: Alexander Bechikov <asb.tyum@gmail.com>
Date: Wed, 24 Nov 2021 12:57:04 +0000 (+0100)
Subject: mbuf: fix dump of dynamic fields and flags
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c0b48da45c151987f660b897c247132dac81021f;p=dpdk.git

mbuf: fix dump of dynamic fields and flags

The dump of dynamic fields and flags fails if the shm is already
allocated. Add a check to fix the issue.

Fixes: d4902ed31c63 ("mbuf: check shared memory before dumping dynamic space")
Cc: stable@dpdk.org

Signed-off-by: Alexander Bechikov <asb.tyum@gmail.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
---

diff --git a/lib/mbuf/rte_mbuf_dyn.c b/lib/mbuf/rte_mbuf_dyn.c
index db8e020665..4ae79383b5 100644
--- a/lib/mbuf/rte_mbuf_dyn.c
+++ b/lib/mbuf/rte_mbuf_dyn.c
@@ -531,7 +531,7 @@ void rte_mbuf_dyn_dump(FILE *out)
 	size_t i;
 
 	rte_mcfg_tailq_write_lock();
-	if (init_shared_mem() < 0) {
+	if (shm == NULL && init_shared_mem() < 0) {
 		rte_mcfg_tailq_write_unlock();
 		return;
 	}