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[PW_SID:990655] LoongArch: Increase COMMAND_LINE_SIZE to 4096 - #761

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[PW_SID:990655] LoongArch: Increase COMMAND_LINE_SIZE to 4096#761
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@linux-riscv-bot linux-riscv-bot commented Aug 12, 2025

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PR for series 990655 applied to workflow__riscv__fixes

Name: LoongArch: Increase COMMAND_LINE_SIZE to 4096
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=990655
Version: 1

Ming Wang Linux RISC-V bot
LoongArch: Increase COMMAND_LINE_SIZE to 4096
7403934 
The default COMMAND_LINE_SIZE of 512, inherited from asm-generic, is
too small for modern use cases. For example, kdump configurations or
extensive debugging parameters can easily exceed this limit.

Therefore, increase the command line size to 4096 bytes, aligning
LoongArch with the MIPS architecture. This change follows a broader
trend among architectures to raise this limit to support modern needs;
for instance, PowerPC increased its value for similar reasons in
commit a5980d0 ("powerpc: Bump COMMAND_LINE_SIZE to 2048").

Similar to the change made for RISC-V in commit 61fc1ee
("riscv: Bump COMMAND_LINE_SIZE value to 1024"), this is considered
a safe change. The broader kernel community has reached a consensus
that modifying COMMAND_LINE_SIZE from UAPI headers does not
constitute a uABI breakage, as well-behaved userspace applications
should not rely on this macro.

Suggested-by: Huang Cun <cunhuang@tencent.com>
Signed-off-by: Ming Wang <wangming01@loongson.cn>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 103.69 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1024.30 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1322.81 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 20.88 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 22.20 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.67 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#32: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 8 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 7403934eb478 ("LoongArch: Increase COMMAND_LINE_SIZE to 4096") 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, 8 lines checked
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 74.65 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.25 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
kdoc
Desc: Detects for kdoc errors
Duration: 0.86 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
module-param
Desc: Detect module_param changes
Duration: 0.24 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

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linux-riscv-bot commented Aug 12, 2025

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Patch 1: "LoongArch: Increase COMMAND_LINE_SIZE to 4096"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

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linux-riscv-bot deleted the pw990655 branch August 13, 2025 14:21
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