Re: [PATCH] riscv: Bump COMMAND_LINE_SIZE value to 1024

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On Tue, 16 Mar 2021 12:34:20 PDT (-0700), alex@xxxxxxxx wrote:
Increase COMMAND_LINE_SIZE as the current default value is too low
for syzbot kernel command line.

Reported-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Signed-off-by: Alexandre Ghiti <alex@xxxxxxxx>
---
 arch/riscv/include/uapi/asm/setup.h | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 arch/riscv/include/uapi/asm/setup.h

diff --git a/arch/riscv/include/uapi/asm/setup.h b/arch/riscv/include/uapi/asm/setup.h
new file mode 100644
index 000000000000..66b13a522880
--- /dev/null
+++ b/arch/riscv/include/uapi/asm/setup.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+
+#ifndef _UAPI_ASM_RISCV_SETUP_H
+#define _UAPI_ASM_RISCV_SETUP_H
+
+#define COMMAND_LINE_SIZE	1024
+
+#endif /* _UAPI_ASM_RISCV_SETUP_H */

This is now back on for-next, with some commit text explaining why it's not a uABI change as per Arnd's message <https://lore.kernel.org/linux-riscv/874b8076-b0d1-4aaa-bcd8-05d523060152@xxxxxxxxxxxxxxxx/#t>. I intend on sending this one for 6.3 as syzkaller depends on it.

Thanks!



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