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authorAlain Knaff <alain@knaff.lu>2009-01-07 00:10:27 -0800
committerH. Peter Anvin <hpa@zytor.com>2009-01-07 00:10:27 -0800
commita26ee60f90daffe1de6be0d093af86e7279b3dfd (patch)
tree01239fb6b173ff46711480b9601c69b92e1715a5 /init/initramfs.c
parentfb9a4ca9820fd4d7c4906bd393004662451e273e (diff)
downloadlinux-linaro-stable-a26ee60f90daffe1de6be0d093af86e7279b3dfd.tar.gz
bzip2/lzma: fix built-in initramfs vs CONFIG_RD_GZIP
Impact: Resolves build failures in some configurations Makes it possible to disable CONFIG_RD_GZIP . In that case, the built-in initramfs will be compressed by whatever compressor is available (bzip2 or lzma) or left uncompressed if none is available. It also removes a couple of warnings which occur when no ramdisk compression at all is chosen. It also restores the select ZLIB_INFLATE in drivers/block/Kconfig which somehow came missing. This is needed to activate compilation of the stuff in zlib_deflate. Signed-off-by: Alain Knaff <alain@knaff.lu> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'init/initramfs.c')
-rw-r--r--init/initramfs.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/init/initramfs.c b/init/initramfs.c
index 40bd4fb95788..a3ba91cdab89 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -389,7 +389,7 @@ static int __init write_buffer(char *buf, unsigned len)
return len - count;
}
-
+#if defined CONFIG_RD_GZIP || defined CONFIG_RD_BZIP2 || defined CONFIG_RD_LZMA
static int __init flush_buffer(void *bufv, unsigned len)
{
char *buf = (char *) bufv;
@@ -412,6 +412,7 @@ static int __init flush_buffer(void *bufv, unsigned len)
}
return origLen;
}
+#endif
static unsigned my_inptr; /* index of next byte to be processed in inbuf */
@@ -449,10 +450,12 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only)
continue;
}
this_header = 0;
+#ifdef CONFIG_RD_GZIP
if (!gunzip(buf, len, NULL, flush_buffer, NULL,
&my_inptr, error) &&
message == NULL)
goto ok;
+#endif
#ifdef CONFIG_RD_BZIP2
message = NULL; /* Zero out message, or else cpio will
@@ -473,7 +476,9 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only)
goto ok;
}
#endif
+#if defined CONFIG_RD_GZIP || defined CONFIG_RD_BZIP2 || defined CONFIG_RD_LZMA
ok:
+#endif
if (state != Reset)
error("junk in compressed archive");
this_header = saved_offset + my_inptr;