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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 the commita5980d064f
("powerpc: Bump COMMAND_LINE_SIZE to 2048"). Similar to the change made for RISC-V in the commit61fc1ee8be
("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: Huacai Chen <chenhuacai@loongson.cn>
9 lines
210 B
C
9 lines
210 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_ASM_LOONGARCH_SETUP_H
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#define _UAPI_ASM_LOONGARCH_SETUP_H
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#define COMMAND_LINE_SIZE 4096
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#endif /* _UAPI_ASM_LOONGARCH_SETUP_H */
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