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authorAndi Drebes <lists-receive@programmierforen.de>2007-10-16 23:27:12 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:53 -0700
commitac8d35c5658377c280dc830352f66233e2f76f73 (patch)
treebf0f460defa448c4a01c8d3acb6fa1d03c48fc36 /include
parent7f44c3621a41576d755668c48d0caf894c228fa9 (diff)
downloadop-kernel-dev-ac8d35c5658377c280dc830352f66233e2f76f73.zip
op-kernel-dev-ac8d35c5658377c280dc830352f66233e2f76f73.tar.gz
cramfs: error message about endianess
The README file in the cramfs subdirectory says: "All data is currently in host-endian format; neither mkcramfs nor the kernel ever do swabbing." If somebody tries to mount a cramfs with the wrong endianess, cramfs only complains about a wrong magic but doesn't inform the user that only the endianess isn't right. The following patch adds an error message to the cramfs sources. If a user tries to mount a cramfs with the wrong endianess using the patched sources, cramfs will display the message "cramfs: wrong endianess". Signed-off-by: Andi Drebes <lists-receive@programmierforen.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/cramfs_fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cramfs_fs.h b/include/linux/cramfs_fs.h
index 1dba681..3be4e5a 100644
--- a/include/linux/cramfs_fs.h
+++ b/include/linux/cramfs_fs.h
@@ -4,6 +4,7 @@
#include <linux/types.h>
#define CRAMFS_MAGIC 0x28cd3d45 /* some random number */
+#define CRAMFS_MAGIC_WEND 0x453dcd28 /* magic number with the wrong endianess */
#define CRAMFS_SIGNATURE "Compressed ROMFS"
/*
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