From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/ethdev Bug 1821] bnxt: warnings when building with gcc-16
Date: Tue, 04 Nov 2025 05:17:49 +0000 [thread overview]
Message-ID: <bug-1821-3@http.bugs.dpdk.org/> (raw)
http://bugs.dpdk.org/show_bug.cgi?id=1821
Bug ID: 1821
Summary: bnxt: warnings when building with gcc-16
Product: DPDK
Version: 25.07
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: stephen@networkplumber.org
Target Milestone: ---
In file included from ../drivers/net/bnxt/tf_ulp/ulp_mapper.h:19,
from ../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:6:
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_tfc_wc_tcam_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:138:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c: In function
‘ulp_mapper_tfc_wc_tcam_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:88:18: note: ‘cword’ declared here
88 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_tfc_wc_tcam_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:138:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c: In function
‘ulp_mapper_tfc_wc_tcam_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:88:18: note: ‘cword’ declared here
88 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_tfc_wc_tcam_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:138:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c: In function
‘ulp_mapper_tfc_wc_tcam_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:88:18: note: ‘cword’ declared here
88 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_tfc_wc_tcam_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:138:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c: In function
‘ulp_mapper_tfc_wc_tcam_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper_tfc.c:88:18: note: ‘cword’ declared here
88 | uint32_t cword, i, rc;
| ^~~~~
In file included from ../drivers/net/bnxt/tf_ulp/ulp_mapper.c:12:
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2499:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2499:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2499:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2499:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2504:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2504:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2504:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
In function ‘ulp_bs_push_msb’,
inlined from ‘ulp_blob_push’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:407:8,
inlined from ‘ulp_blob_push_32’ at
../drivers/net/bnxt/tf_ulp/ulp_utils.h:551:7,
inlined from ‘ulp_mapper_wc_tcam_tbl_dyn_post_process’ at
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2504:9:
../drivers/net/bnxt/tf_ulp/ulp_utils.h:336:17: warning: ‘cword’ may be used
uninitialized [-Wmaybe-uninitialized]
336 | ulp_bs_put_msb(bs, pos, 8, val[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnxt/tf_ulp/ulp_mapper.c: In function
‘ulp_mapper_wc_tcam_tbl_dyn_post_process’:
../drivers/net/bnxt/tf_ulp/ulp_mapper.c:2455:18: note: ‘cword’ declared here
2455 | uint32_t cword, i, rc;
| ^~~~~
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