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MIPS: Make builtin_cmdline const & variable length

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We have no need for the builtin_cmdline array to be fixed at the length
of COMMAND_LINE_SIZE - we'll only copy out the string it contains up to
its NULL terminator anyway, and cap the size at COMMAND_LINE_SIZE when
copying into or concatenating with boot_command_line.

The string value is also constant, so we can declare it as such to place
it in the .init.rodata section.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
This commit is contained in:
Paul Burton 2019-10-12 20:43:38 +00:00
parent 972727766e
commit 9dd422f697
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1 changed files with 1 additions and 1 deletions
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arch/mips/kernel/setup.c
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@ -67,7 +67,7 @@ static char __initdata command_line[COMMAND_LINE_SIZE];
char __initdata arcs_cmdline[COMMAND_LINE_SIZE];
#ifdef CONFIG_CMDLINE_BOOL
static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
static const char builtin_cmdline[] __initconst = CONFIG_CMDLINE;
#else
static const char builtin_cmdline[] __initconst = "";
#endif