generic: fix crashlog patch for 3.6

kmsg_dump() uses an iterator to receive log buffer
content since 3.5. Change the 'crashlog_do_dump'
function in order to make it compatible with the
new version.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 33970

target/linux/generic/patches-3.6/930-crashlog.patch

@@ -43,7 +43,7 @@
  
 --- /dev/null
 +++ b/kernel/crashlog.c
-@@ -0,0 +1,190 @@
+@@ -0,0 +1,181 @@
 +/*
 + * Crash information logger
 + * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
@@ -173,15 +173,12 @@
 +}
 +
 +static void crashlog_do_dump(struct kmsg_dumper *dumper,
-+		enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
-+		const char *s2, unsigned long l2)
++		enum kmsg_dump_reason reason)
 +{
-+	unsigned long s1_start, s2_start;
-+	unsigned long l1_cpy, l2_cpy;
 +	struct timeval tv;
 +	struct module *m;
 +	char *buf;
-+	int len;
++	size_t len;
 +
 +	if (!first)
 +		crashlog_printf("\n===================================\n");
@@ -202,17 +199,10 @@
 +	}
 +
 +	buf = (char *)&crashlog_buf->data[crashlog_buf->len];
-+	len = get_maxlen();
 +
-+	l2_cpy = min(l2, (unsigned long)len);
-+	l1_cpy = min(l1, (unsigned long)len - l2_cpy);
++	kmsg_dump_get_buffer(dumper, true, buf, get_maxlen(), &len);
 +
-+	s2_start = l2 - l2_cpy;
-+	s1_start = l1 - l1_cpy;
-+
-+	memcpy(buf, s1 + s1_start, l1_cpy);
-+	memcpy(buf + l1_cpy, s2 + s2_start, l2_cpy);
-+	crashlog_buf->len += l1_cpy + l2_cpy;
++	crashlog_buf->len += len;
 +}
 +
 +
@@ -228,6 +218,7 @@
 +	crashlog_buf->magic = CRASHLOG_MAGIC;
 +	crashlog_buf->len = 0;
 +
++	dump.max_reason = KMSG_DUMP_OOPS;
 +	dump.dump = crashlog_do_dump;
 +	kmsg_dump_register(&dump);
 +