[PW_SID:1080612] riscv32 library enhancements and build fixes by linux-riscv-bot · Pull Request #1759 · linux-riscv/linux

linux-riscv-bot · 2026-04-13T11:08:42Z

PR for series 1080612 applied to workflow__riscv__fixes

Name: riscv32 library enhancements and build fixes
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1080612
Version: 3

Add riscv32-specific '__ashldi3()', '__ashrdi3()', and '__lshrdi3()'. Initially it was intended to fix the following link error observed when building EFI-enabled kernel with CONFIG_EFI_STUB=y and CONFIG_EFI_GENERIC_STUB=y: riscv32-linux-gnu-ld: ./drivers/firmware/efi/libstub/lib-cmdline.stub.o: in function `__efistub_.L49': __efistub_cmdline.c:(.init.text+0x1f2): undefined reference to `__efistub___ashldi3' riscv32-linux-gnu-ld: __efistub_cmdline.c:(.init.text+0x202): undefined reference to `__efistub___lshrdi3' Reported at [1] trying to build https://patchew.org/linux/20260212164413.889625-1-dmantipov@yandex.ru, tested with 'qemu-system-riscv32 -M virt' only. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202603041925.KLKqpK6N-lkp@intel.com [1] Suggested-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Add KUnit tests for '__ashldi3()', '__ashrdi3()', and '__lshrdi3()' helper functions used to implement 64-bit arithmetic shift left, arithmetic shift right and logical shift right, respectively, on a 32-bit CPUs. Tested with 'qemu-system-riscv32 -M virt' and 'qemu-system-arm -M virt'. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

When building vmlinuz.efi with CONFIG_EFI_ZBOOT enabled, '__lshrdi3()' is also needed to fix yet another link error: riscv32-linux-gnu-ld: drivers/firmware/efi/libstub/lib-cmdline.stub.o: in function `__efistub_.L49': __efistub_cmdline.c:(.init.text+0x202): undefined reference to `__efistub___lshrdi3' And since riscv64 can have CONFIG_EFI_ZBOOT but doesn't need these library routines, introduce CONFIG_EFI_ZBOOT_EXTRAS to manage linking of lib-ashldi3.o lib-lshrdi3.o on riscv32 only. Reviewed-and-tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

linux-riscv-bot · 2026-04-13T11:14:46Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 135.40 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:30:10Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 921.91 seconds
Result: ERROR
Output:

Redirect to /build/tmp.w3PzynQe3E and /build/tmp.hyYZpGoDaR
Tree base:
506e7f67b3724 ("Adding CI files")
Building the whole tree with the patch
error:
Warning: /build/tmpq5jp1wj3/drivers/pmdomain/mediatek/mtk-mfg-pmdomain.c:244 struct __packed mtk_mfg_opp_entry { __le32 freq_khz; __le32 voltage_core; __le32 voltage_sram; __le32 posdiv; __le32 voltage_margin; __le32 power_mw; }; error: Cannot parse struct or union!
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3



real	15m13.369s
user	572m19.474s
sys	106m21.033s

linux-riscv-bot · 2026-04-13T11:53:57Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1425.64 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:54:24Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.11 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:54:52Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.28 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:54:57Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 3.25 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#81: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 138 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit ba9878dfb7e7 ("riscv: add platform-specific double word shifts for riscv32") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 138 lines checked
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

linux-riscv-bot · 2026-04-13T11:56:21Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.62 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:56:23Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:56:26Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
kdoc
Desc: Detects for kdoc errors
Duration: 1.82 seconds
Result: ERROR
Output:

Checking the tree before the patch
Error: Cannot find file arch/riscv/lib/ashldi3.S
Error: Cannot find file arch/riscv/lib/ashrdi3.S
Error: Cannot find file arch/riscv/lib/lshrdi3.S
Checking the tree with the patch
Warning: arch/riscv/lib/ashldi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Adopted for the Linux kernel from IPXE project, see
Warning: arch/riscv/lib/ashldi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Shift left
Warning: arch/riscv/lib/ashrdi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Adopted for the Linux kernel from IPXE project, see
Warning: arch/riscv/lib/ashrdi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Arithmetic shift right
Warning: arch/riscv/lib/lshrdi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Adopted for the Linux kernel from IPXE project, see
Warning: arch/riscv/lib/lshrdi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Logical shift right
Errors and warnings before: 3 this patch: 12
New warnings added
1,3c1,12
< Error: Cannot find file arch/riscv/lib/ashldi3.S
< Error: Cannot find file arch/riscv/lib/ashrdi3.S
< Error: Cannot find file arch/riscv/lib/lshrdi3.S
---
> Warning: arch/riscv/lib/ashldi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Adopted for the Linux kernel from IPXE project, see
> Warning: arch/riscv/lib/ashldi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Shift left
> Warning: arch/riscv/lib/ashrdi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Adopted for the Linux kernel from IPXE project, see
> Warning: arch/riscv/lib/ashrdi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Arithmetic shift right
> Warning: arch/riscv/lib/lshrdi3.S:2 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Adopted for the Linux kernel from IPXE project, see
> Warning: arch/riscv/lib/lshrdi3.S:10 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
>  * Logical shift right
Per-file breakdown

linux-riscv-bot · 2026-04-13T11:56:28Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:56:30Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:56:32Z

Patch 1: "[v3,1/3] riscv: add platform-specific double word shifts for riscv32"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T11:59:02Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 134.88 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:14:26Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 921.94 seconds
Result: ERROR
Output:

Redirect to /build/tmp.ZtAPIf1idf and /build/tmp.rnXEHBJYJP
Tree base:
ba9878dfb7e79 ("riscv: add platform-specific double word shifts for riscv32")
Building the whole tree with the patch
error:
Warning: /build/tmp76m8t1je/drivers/pmdomain/mediatek/mtk-mfg-pmdomain.c:244 struct __packed mtk_mfg_opp_entry { __le32 freq_khz; __le32 voltage_core; __le32 voltage_sram; __le32 posdiv; __le32 voltage_margin; __le32 power_mw; }; error: Cannot parse struct or union!
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3
ld.lld: error: ./arch/riscv/kernel/vmlinux.lds:9: symbol not found: __ashldi3



real	15m12.910s
user	571m48.574s
sys	106m25.649s

linux-riscv-bot · 2026-04-13T12:37:00Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1352.53 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:37:27Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.94 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:37:55Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.20 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:37:59Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 2.37 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#59: 
new file mode 100644

CHECK: Please use a blank line after function/struct/union/enum declarations
#235: FILE: lib/tests/shdi3_kunit.c:172:
+};
+kunit_test_suite(shdi3_test_suite);

total: 0 errors, 1 warnings, 1 checks, 198 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 31abe7e51d8a ("lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 1 checks, 198 lines checked
CHECK: Please use a blank line after function/struct/union/enum declarations
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

linux-riscv-bot · 2026-04-13T12:39:24Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.82 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:39:26Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:39:28Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
kdoc
Desc: Detects for kdoc errors
Duration: 0.85 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:39:30Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
module-param
Desc: Detect module_param changes
Duration: 0.27 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:39:32Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:39:34Z

Patch 2: "[v3,2/3] lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3()"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.31 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T12:42:03Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 135.57 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:00:16Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1090.83 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:27:15Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1617.99 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:27:42Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.51 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:28:10Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.28 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:28:13Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 0.92 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:37Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.67 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:40Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:42Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
kdoc
Desc: Detects for kdoc errors
Duration: 0.85 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:44Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
module-param
Desc: Detect module_param changes
Duration: 0.25 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:46Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-04-13T13:29:48Z

Patch 3: "[v3,3/3] riscv: fix building compressed EFI image"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

dmantipov added 3 commits April 13, 2026 11:08

linux-riscv-bot closed this Apr 14, 2026

linux-riscv-bot deleted the pw1080612 branch April 14, 2026 11:43

Conversation

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

linux-riscv-bot commented Apr 13, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone