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Date: Wed, 15 Nov 2017 11:11:52 +0800 From: Jiaxun Yang <jiaxun.yang@...goat.com> To: Ralf Baechle <ralf@...ux-mips.org> Cc: linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org, Jiaxun Yang <jiaxun.yang@...goat.com> Subject: [PATCH v3 1/4] MIPS: Lonngson64: Copy kernel command line from arcs_cmdline Since lemote-2f/marchtype.c need to get cmdline from loongson.h this patch simply copy kernel command line from arcs_cmdline to fix that issue. Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com> --- arch/mips/include/asm/mach-loongson64/loongson.h | 6 ++++++ arch/mips/loongson64/common/cmdline.c | 7 +++++++ 2 files changed, 13 insertions(+) diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index c68c0cc879c6..1edf3a484e6a 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -45,6 +45,12 @@ static inline void prom_init_uart_base(void) #endif } +/* + * Copy kernel command line from arcs_cmdline + */ +#include <asm/setup.h> +extern char loongson_cmdline[COMMAND_LINE_SIZE]; + /* irq operation functions */ extern void bonito_irqdispatch(void); extern void __init bonito_irq_init(void); diff --git a/arch/mips/loongson64/common/cmdline.c b/arch/mips/loongson64/common/cmdline.c index 01fbed137028..49e172184e15 100644 --- a/arch/mips/loongson64/common/cmdline.c +++ b/arch/mips/loongson64/common/cmdline.c @@ -21,6 +21,11 @@ #include <loongson.h> +/* the kernel command line copied from arcs_cmdline */ +#include <linux/export.h> +char loongson_cmdline[COMMAND_LINE_SIZE]; +EXPORT_SYMBOL(loongson_cmdline); + void __init prom_init_cmdline(void) { int prom_argc; @@ -45,4 +50,6 @@ void __init prom_init_cmdline(void) } prom_init_machtype(); + /* copy arcs_cmdline into loongson_cmdline */ + strncpy(loongson_cmdline, arcs_cmdline, COMMAND_LINE_SIZE); } -- 2.14.1
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