lib: move kasprintf to a separate file
kasprintf pulls in kmalloc which proved to be fatal for at least
bootimage target on alpha.
Move it to a separate file so only users of kasprintf are exposed
to the dependency on kmalloc.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/Makefile b/lib/Makefile
index 6149663..d9e5f1c 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -2,7 +2,7 @@
# Makefile for some libs needed in the kernel.
#
-lib-y := ctype.o string.o vsprintf.o cmdline.o \
+lib-y := ctype.o string.o vsprintf.o kasprintf.o cmdline.o \
rbtree.o radix-tree.o dump_stack.o \
idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \
sha1.o irq_regs.o reciprocal_div.o argv_split.o
diff --git a/lib/kasprintf.c b/lib/kasprintf.c
new file mode 100644
index 0000000..c5ff1fd
--- /dev/null
+++ b/lib/kasprintf.c
@@ -0,0 +1,44 @@
+/*
+ * linux/lib/kasprintf.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+#include <stdarg.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+/* Simplified asprintf. */
+char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
+{
+ unsigned int len;
+ char *p;
+ va_list aq;
+
+ va_copy(aq, ap);
+ len = vsnprintf(NULL, 0, fmt, aq);
+ va_end(aq);
+
+ p = kmalloc(len+1, gfp);
+ if (!p)
+ return NULL;
+
+ vsnprintf(p, len+1, fmt, ap);
+
+ return p;
+}
+EXPORT_SYMBOL(kvasprintf);
+
+char *kasprintf(gfp_t gfp, const char *fmt, ...)
+{
+ va_list ap;
+ char *p;
+
+ va_start(ap, fmt);
+ p = kvasprintf(gfp, fmt, ap);
+ va_end(ap);
+
+ return p;
+}
+EXPORT_SYMBOL(kasprintf);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 6b6734d..7b481ce 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -978,38 +978,3 @@
}
EXPORT_SYMBOL(sscanf);
-
-
-/* Simplified asprintf. */
-char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
-{
- unsigned int len;
- char *p;
- va_list aq;
-
- va_copy(aq, ap);
- len = vsnprintf(NULL, 0, fmt, aq);
- va_end(aq);
-
- p = kmalloc(len+1, gfp);
- if (!p)
- return NULL;
-
- vsnprintf(p, len+1, fmt, ap);
-
- return p;
-}
-EXPORT_SYMBOL(kvasprintf);
-
-char *kasprintf(gfp_t gfp, const char *fmt, ...)
-{
- va_list ap;
- char *p;
-
- va_start(ap, fmt);
- p = kvasprintf(gfp, fmt, ap);
- va_end(ap);
-
- return p;
-}
-EXPORT_SYMBOL(kasprintf);
