[PATCH] Up silly limit on .config line length

[Russell King]

kconfig brought in a bug whereby no .config line can be longer than 128
characters.  This causes a problem since it is quite common to have
.config lines longer than this on ARM, especially when they contain the
default kernel command line, like:

CONFIG_CMDLINE="console=ttySA0,38400n8 cpufreq=221200 rw root=/dev/ram0 mtdparts=sa1100:512K(boot),1M(kernel),2560K(initrd),4M("

The effect of this bug can be seen above; in this case it has chopped
off the parameters that allow this machine to boot; the missing parameters
should be:

 "root) load_ramdisk=1 prompt_ramdisk=0 mem=32M noinitrd initrd=0xc0800000,3M"

I believe that this arbitary limit should be eliminated by some method.
However, as a "get you working" patch with a new arbitary limit of 1024
characters:

--- linux/scripts/kconfig/confdata.c	Tue Nov  5 23:24:42 2002
+++ linux-sa1100/scripts/kconfig/confdata.c	Tue Nov  5 23:28:57 2002
@@ -61,7 +61,7 @@
 int conf_read(const char *name)
 {
 	FILE *in = NULL;
-	char line[128];
+	char line[1024];
 	char *p, *p2;
 	int lineno = 0;
 	struct symbol *sym;
@@ -105,7 +105,7 @@
 		}
 	}
 
-	while (fgets(line, 128, in)) {
+	while (fgets(line, sizeof(line), in)) {
 		lineno++;
 		switch (line[0]) {
 		case '#':

-- 
Russell King ([e-mail])                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html