A kernel may not need any boot parameters from the bootloader, allow
disabling bootparam parsing in that case.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
string "DTB to build into the kernel image"
depends on OF
+config PARSE_BOOTPARAM
+ bool "Parse bootparam block"
+ default y
+ help
+ Parse parameters passed to the kernel from the bootloader. It may
+ be disabled if the kernel is known to run without the bootloader.
+
+ If unsure, say Y.
+
config BLK_DEV_SIMDISK
tristate "Host file-based simulated block device support"
default n
.word KERNELOFFSET
#endif
RomBootParam:
- .word _bootparam
+#ifndef CONFIG_PARSE_BOOTPARAM
+ .word 0
+#else
+ .word _bootparam
_bootparam:
.short BP_TAG_FIRST
.short 4
.short BP_TAG_LAST
.short 0
.long 0
+#endif
.align 4
_SetupMMU:
static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
#endif
+#ifdef CONFIG_PARSE_BOOTPARAM
/*
* Boot parameter parsing.
*
return 0;
}
+#else
+static int __init parse_bootparam(const bp_tag_t *tag)
+{
+ pr_info("Ignoring boot parameters at %p\n", tag);
+ return 0;
+}
+#endif
#ifdef CONFIG_OF