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From: wenxuanx.wu@intel.com
To: qiming.yang@intel.com, qi.z.zhang@intel.com, dev@dpdk.org,
	thomas@monjalon.net
Cc: stephen@networkplumber.org, wenxuanx.wu@intel.com, stable@dpdk.org
Subject: [PATCH] ice/base: fix gcc 12 warning stringop-overflow
Date: Thu, 16 Jun 2022 18:33:04 +0800	[thread overview]
Message-ID: <20220616103304.132368-1-wenxuanx.wu@intel.com> (raw)

From: Wenxuan Wu <wenxuanx.wu@intel.com>

Gcc with -O2 flag, would retrieve the value in one time.
This patch changed the type of fv_idx in struct ice_recp_grp_entry to
align with its callers which is also u8 type.

When u8 idx[5] = a value u16 index[4], gcc12 would give this warning,
because it is not big enough to store the bytes(bigger than 5 bytes)
in one time (-O2 would do it in this way).

Fixes: 04b8ec1ea807 ("net/ice/base: add protocol structures and defines")
Cc: stable@dpdk.org
Signed-off-by: Wenxuan Wu <wenxuanx.wu@intel.com>
---
 drivers/net/ice/base/ice_protocol_type.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ice/base/ice_protocol_type.h b/drivers/net/ice/base/ice_protocol_type.h
index 0e6e5990be..cfe3b62630 100644
--- a/drivers/net/ice/base/ice_protocol_type.h
+++ b/drivers/net/ice/base/ice_protocol_type.h
@@ -421,7 +421,7 @@ struct ice_recp_grp_entry {
 #define ICE_INVAL_CHAIN_IND 0xFF
 	u16 rid;
 	u8 chain_idx;
-	u16 fv_idx[ICE_NUM_WORDS_RECIPE];
+	u8 fv_idx[ICE_NUM_WORDS_RECIPE];
 	u16 fv_mask[ICE_NUM_WORDS_RECIPE];
 	struct ice_pref_recipe_group r_group;
 };
-- 
2.25.1


             reply	other threads:[~2022-06-16 10:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-16 10:33 wenxuanx.wu [this message]
2022-06-16 14:29 ` David Marchand
2022-06-17  1:29   ` Wu, WenxuanX
2022-06-17  5:04     ` David Marchand
2022-06-19 12:34 ` Zhang, Qi Z
2022-06-20  1:38   ` Wu, WenxuanX
2022-06-20  5:06     ` Wu, WenxuanX
2022-06-23  7:42       ` David Marchand
2022-06-23  9:01 ` [PATCH v2] net/ice/base: " wenxuanx.wu
2022-06-23  9:21   ` Zhang, Qi Z

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