Every time when compiling a new Linux kernel, I'm surprised that
this warning still occurs:
WARNING: vmlinux.o(.text+0x14cfd8): Section mismatch in
reference from the variable compressed_formats to the function
.init.text:gunzip()
The function compressed_formats() references
the function __init gunzip().
etc..
This patch should solve it:
Within decompress.c, compressed_formats[] needs 'a __initdata annotation', because
some of it's data members refer to functions which will be unloaded after init.
Consequently, it's user decompress_method() will get the __init prefix.
Signed-off-by: Hein Tibosch <hein_tibosch@xxxxxxxx>
---
lib/decompress.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/lib/decompress.c b/lib/decompress.c
index 3d766b7..31a8042 100644
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/string.h>
+#include <linux/init.h>
#ifndef CONFIG_DECOMPRESS_GZIP
# define gunzip NULL
@@ -31,11 +32,13 @@
# define unlzo NULL
#endif
-static const struct compress_format {
+struct compress_format {
unsigned char magic[2];
const char *name;
decompress_fn decompressor;
-} compressed_formats[] = {
+};
+
+static const struct compress_format compressed_formats[] __initdata = {
{ {037, 0213}, "gzip", gunzip },
{ {037, 0236}, "gzip", gunzip },
{ {0x42, 0x5a}, "bzip2", bunzip2 },
@@ -45,7 +48,7 @@ static const struct compress_format {
{ {0, 0}, NULL, NULL }
};
-decompress_fn decompress_method(const unsigned char *inbuf, int len,
+decompress_fn __init decompress_method(const unsigned char *inbuf, int len,
const char **name)
{
const struct compress_format *cf;
--
1.7.8.0
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