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Message-ID: <CA+G9fYsiWN1gWhHBk9uruDBzVHvLYCTL-VcxU2iiPMcS1EXyBg@mail.gmail.com>
Date: Tue, 17 Jun 2025 16:27:31 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>, lkft-triage@...ts.linaro.org,
Linux Regressions <regressions@...ts.linux.dev>
Cc: Shuah Khan <shuah@...nel.org>, Ming Lei <ming.lei@...hat.com>, Jens Axboe <axboe@...nel.dk>,
kbusch@...nel.org, Anders Roxell <anders.roxell@...aro.org>,
Dan Carpenter <dan.carpenter@...aro.org>, Arnd Bergmann <arnd@...db.de>
Subject: selftests ublk UBLK_IO_F_NEED_REG_BUF undeclared
The following build warnings / errors noticed while building the selftest/ublk
with gcc-13 and clang-nightly toolchains on Linux next tree.
Please suggest if I am missing something in my build setup.
Regressions found on arm arm64 x86_64
- selftests ublk
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
Build regression: selftests ublk UBLK_IO_F_NEED_REG_BUF undeclared
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
## Build log
CC kublk
In file included from kublk.c:6:
kublk.h: In function 'ublk_io_auto_zc_fallback':
kublk.h:240:35: error: 'UBLK_IO_F_NEED_REG_BUF' undeclared (first use
in this function); did you mean 'UBLKSRV_NEED_REG_BUF'?
240 | return !!(iod->op_flags & UBLK_IO_F_NEED_REG_BUF);
| ^~~~~~~~~~~~~~~~~~~~~~
| UBLKSRV_NEED_REG_BUF
kublk.h:240:35: note: each undeclared identifier is reported only once
for each function it appears in
kublk.c: In function 'ublk_ctrl_update_size':
kublk.c:223:27: error: 'UBLK_U_CMD_UPDATE_SIZE' undeclared (first use
in this function)
223 | .cmd_op = UBLK_U_CMD_UPDATE_SIZE,
| ^~~~~~~~~~~~~~~~~~~~~~
kublk.c: In function 'ublk_ctrl_quiesce_dev':
kublk.c:235:27: error: 'UBLK_U_CMD_QUIESCE_DEV' undeclared (first use
in this function); did you mean 'UBLK_U_CMD_DEL_DEV'?
235 | .cmd_op = UBLK_U_CMD_QUIESCE_DEV,
| ^~~~~~~~~~~~~~~~~~~~~~
| UBLK_U_CMD_DEL_DEV
kublk.c: In function 'ublk_queue_init':
kublk.c:447:63: error: 'UBLK_F_AUTO_BUF_REG' undeclared (first use in
this function); did you mean 'UBLKSRV_AUTO_BUF_REG'?
447 | if (dev->dev_info.flags & (UBLK_F_SUPPORT_ZERO_COPY |
UBLK_F_AUTO_BUF_REG)) {
|
^~~~~~~~~~~~~~~~~~~
|
UBLKSRV_AUTO_BUF_REG
kublk.c: In function 'ublk_thread_init':
kublk.c:507:63: error: 'UBLK_F_AUTO_BUF_REG' undeclared (first use in
this function); did you mean 'UBLKSRV_AUTO_BUF_REG'?
507 | if (dev->dev_info.flags & (UBLK_F_SUPPORT_ZERO_COPY |
UBLK_F_AUTO_BUF_REG)) {
|
^~~~~~~~~~~~~~~~~~~
|
UBLKSRV_AUTO_BUF_REG
kublk.c: In function 'ublk_set_auto_buf_reg':
kublk.c:579:16: error: variable 'buf' has initializer but incomplete type
579 | struct ublk_auto_buf_reg buf = {};
| ^~~~~~~~~~~~~~~~~
kublk.c:579:34: error: storage size of 'buf' isn't known
579 | struct ublk_auto_buf_reg buf = {};
| ^~~
kublk.c:587:29: error: 'UBLK_AUTO_BUF_REG_FALLBACK' undeclared (first
use in this function); did you mean 'UBLKSRV_AUTO_BUF_REG_FALLBACK'?
587 | buf.flags = UBLK_AUTO_BUF_REG_FALLBACK;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| UBLKSRV_AUTO_BUF_REG_FALLBACK
kublk.c:589:21: error: implicit declaration of function
'ublk_auto_buf_reg_to_sqe_addr'
[-Werror=implicit-function-declaration]
589 | sqe->addr = ublk_auto_buf_reg_to_sqe_addr(&buf);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kublk.c:579:34: error: unused variable 'buf' [-Werror=unused-variable]
579 | struct ublk_auto_buf_reg buf = {};
| ^~~
kublk.c: In function '__cmd_dev_add':
kublk.c:1178:25: error: 'UBLK_F_QUIESCE' undeclared (first use in this function)
1178 | if ((features & UBLK_F_QUIESCE) &&
| ^~~~~~~~~~~~~~
kublk.c: In function 'cmd_dev_get_features':
kublk.c:1381:30: error: 'UBLK_F_UPDATE_SIZE' undeclared (first use in
this function)
1381 | [const_ilog2(UBLK_F_UPDATE_SIZE)] = "UPDATE_SIZE",
| ^~~~~~~~~~~~~~~~~~
kublk.c:1369:46: note: in definition of macro 'const_ilog2'
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1369:24: error: array index in initializer not of integer type
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1381:18: note: in expansion of macro 'const_ilog2'
1381 | [const_ilog2(UBLK_F_UPDATE_SIZE)] = "UPDATE_SIZE",
| ^~~~~~~~~~~
kublk.c:1369:24: note: (near initialization for 'feat_map')
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1381:18: note: in expansion of macro 'const_ilog2'
1381 | [const_ilog2(UBLK_F_UPDATE_SIZE)] = "UPDATE_SIZE",
| ^~~~~~~~~~~
kublk.c:1382:30: error: 'UBLK_F_AUTO_BUF_REG' undeclared (first use in
this function); did you mean 'UBLKSRV_AUTO_BUF_REG'?
1382 | [const_ilog2(UBLK_F_AUTO_BUF_REG)] = "AUTO_BUF_REG",
| ^~~~~~~~~~~~~~~~~~~
kublk.c:1369:46: note: in definition of macro 'const_ilog2'
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1369:24: error: array index in initializer not of integer type
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1382:18: note: in expansion of macro 'const_ilog2'
1382 | [const_ilog2(UBLK_F_AUTO_BUF_REG)] = "AUTO_BUF_REG",
| ^~~~~~~~~~~
kublk.c:1369:24: note: (near initialization for 'feat_map')
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1382:18: note: in expansion of macro 'const_ilog2'
1382 | [const_ilog2(UBLK_F_AUTO_BUF_REG)] = "AUTO_BUF_REG",
| ^~~~~~~~~~~
kublk.c:1383:30: error: 'UBLK_F_QUIESCE' undeclared (first use in this function)
1383 | [const_ilog2(UBLK_F_QUIESCE)] = "QUIESCE",
| ^~~~~~~~~~~~~~
kublk.c:1369:46: note: in definition of macro 'const_ilog2'
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1369:24: error: array index in initializer not of integer type
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1383:18: note: in expansion of macro 'const_ilog2'
1383 | [const_ilog2(UBLK_F_QUIESCE)] = "QUIESCE",
| ^~~~~~~~~~~
kublk.c:1369:24: note: (near initialization for 'feat_map')
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1383:18: note: in expansion of macro 'const_ilog2'
1383 | [const_ilog2(UBLK_F_QUIESCE)] = "QUIESCE",
| ^~~~~~~~~~~
kublk.c:1384:30: error: 'UBLK_F_PER_IO_DAEMON' undeclared (first use
in this function)
1384 | [const_ilog2(UBLK_F_PER_IO_DAEMON)] = "PER_IO_DAEMON",
| ^~~~~~~~~~~~~~~~~~~~
kublk.c:1369:46: note: in definition of macro 'const_ilog2'
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1369:24: error: array index in initializer not of integer type
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1384:18: note: in expansion of macro 'const_ilog2'
1384 | [const_ilog2(UBLK_F_PER_IO_DAEMON)] = "PER_IO_DAEMON",
| ^~~~~~~~~~~
kublk.c:1369:24: note: (near initialization for 'feat_map')
1369 | #define const_ilog2(x) (63 - __builtin_clzll(x))
| ^
kublk.c:1384:18: note: in expansion of macro 'const_ilog2'
1384 | [const_ilog2(UBLK_F_PER_IO_DAEMON)] = "PER_IO_DAEMON",
| ^~~~~~~~~~~
kublk.c: In function 'main':
kublk.c:1613:46: error: 'UBLK_F_AUTO_BUF_REG' undeclared (first use in
this function); did you mean 'UBLKSRV_AUTO_BUF_REG'?
1613 | ctx.flags |= UBLK_F_AUTO_BUF_REG;
| ^~~~~~~~~~~~~~~~~~~
| UBLKSRV_AUTO_BUF_REG
cc1: all warnings being treated as errors
## Source
* Kernel version: 6.16.0-rc2
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha: 050f8ad7b58d9079455af171ac279c4b9b828c11
* Git describe: next-20250616
* Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250616/
* Architectures: arm, arm64, x86_64
* Toolchains: gcc-13, clang nightly
* Kconfigs: selftest/*/config+defconfig+
## Build arm64
* Build log clang:
https://regressions.linaro.org/lkft/linux-next-master/next-20250617/log-parser-build-clang/clang-compiler-null_c-error-use-of-undeclared-identifier-ublk_param_type_segment/
* Build log gcc:
https://regressions.linaro.org/lkft/linux-next-master/next-20250617/log-parser-build-gcc/gcc-compiler-null_c-error-ublk_param_type_segment-undeclared-first-use-in-this-function-did-you-mean-ublk_param_type_devt/
* Build details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250617/log-parser-build-clang/clang-compiler-kublk_c-error-variable-has-incomplete-type-struct-ublk_auto_buf_reg/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2ycmBy2r4aPm6emlo7FXwX0my1D/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2ycmBy2r4aPm6emlo7FXwX0my1D/config
## Steps to reproduce
- tuxmake \
--runtime podman \
--target-arch arm64 \
--toolchain gcc-13 \
--kconfig defconfig \
--kconfig-add
https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/netdev.config
\
--kconfig-add
https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/systemd.config
\
--kconfig-add CONFIG_SYN_COOKIES=y \
--kconfig-add CONFIG_SCHEDSTATS=y debugkernel dtbs dtbs-legacy
headers kernel kselftest modules
--
Linaro LKFT
https://lkft.linaro.org
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