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RISC-V: Remove duplicate command-line parsing logic 

builtin_cmdline handling is present in drivers/of/fdt.c so the
duplicate logic in arch/riscv/setup.c results in duplication of
the builtin command line. e.g. CONFIG_CMDLINE="root=/dev/vda ro"
gets appended twice and gives "root=/dev/vda ro root=/dev/vda ro"

Before this patch:

[    0.000000] Kernel command line: root=/dev/vda ro root=/dev/vda ro

After this patch:

[    0.000000] Kernel command line: root=/dev/vda ro

Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Michael Clark 2017-12-16 11:17:02 -08:00 committed by Palmer Dabbelt
parent 155d33af7e
commit 3e076a7e04
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1 changed files with 0 additions and 16 deletions
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16
arch/riscv/kernel/setup.c
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@ -49,10 +49,6 @@ struct screen_info screen_info = {
};
#endif
#ifdef CONFIG_CMDLINE_BOOL
static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
#endif /* CONFIG_CMDLINE_BOOL */
unsigned long va_pa_offset;
EXPORT_SYMBOL(va_pa_offset);
unsigned long pfn_base;
@ -208,18 +204,6 @@ static void __init setup_bootmem(void)
void __init setup_arch(char **cmdline_p)
{
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
#else
if (builtin_cmdline[0] != '\0') {
/* Append bootloader command line to built-in */
strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
#endif /* CONFIG_CMDLINE_OVERRIDE */
#endif /* CONFIG_CMDLINE_BOOL */
*cmdline_p = boot_command_line;
parse_early_param();