From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/ethdev Bug 1862] mlx5: errors when built with LTO
Date: Wed, 31 Dec 2025 17:58:21 +0000 [thread overview]
Message-ID: <bug-1862-3@http.bugs.dpdk.org/> (raw)
http://bugs.dpdk.org/show_bug.cgi?id=1862
Bug ID: 1862
Summary: mlx5: errors when built with LTO
Product: DPDK
Version: 25.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: stephen@networkplumber.org
Target Milestone: ---
Building with LTO and release flags causes lots of warnings in mlx5
[3686/3710] Linking target drivers/librte_net_mlx5.so.26.1
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [140, 524248]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [12, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [140, 524248]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [148, 524256]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [20, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [148, 524256]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [156, 524264]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [28, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [156, 524264]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [164, 524272]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [36, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [164, 524272]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [172, 524280]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [44, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [172, 524280]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [180, 524288]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [52, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [180, 524288]
into destination object ‘mh_data’ of size 64
In function ‘mlx5dr_action_prepare_decap_l3_data’,
inlined from ‘mlx5dr_action_handle_tunnel_l3_to_l2’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2164:3,
inlined from ‘mlx5dr_action_create_reformat_hws’ at
../drivers/net/mlx5/hws/mlx5dr_action.c:2234:9:
../drivers/net/mlx5/hws/mlx5dr_action.c:3643:17: warning: writing 4 bytes into
a region of size 0 [-Wstringop-overflow=]
3643 | memcpy(dst, e_src, MLX5DR_ACTION_INLINE_DATA_SIZE); /*
data */
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c: In function
‘mlx5dr_action_create_reformat_hws’:
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [188, 524296]
into destination object ‘mh_data’ of size 64
2144 | uint8_t mh_data[MLX5DR_ACTION_REFORMAT_DATA_SIZE] = {0};
| ^
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [60, 64] into
destination object ‘mh_data’ of size 64
../drivers/net/mlx5/hws/mlx5dr_action.c:2144:17: note: at offset [188, 524296]
into destination object ‘mh_data’ of size 64
--
You are receiving this mail because:
You are the assignee for the bug.
next reply other threads:[~2025-12-31 17:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-31 17:58 bugzilla [this message]
2026-01-19 18:43 ` [DPDK/ethdev Bug 1862] mlx5: errors when built with LTO bugzilla
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-1862-3@http.bugs.dpdk.org/ \
--to=bugzilla@dpdk.org \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.