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| author | Alain Knaff <alain@knaff.lu> | 2009-01-07 00:10:27 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-01-07 00:10:27 -0800 |
| commit | a26ee60f90daffe1de6be0d093af86e7279b3dfd (patch) | |
| tree | 01239fb6b173ff46711480b9601c69b92e1715a5 /init/initramfs.c | |
| parent | fb9a4ca9820fd4d7c4906bd393004662451e273e (diff) | |
| download | lwn-a26ee60f90daffe1de6be0d093af86e7279b3dfd.tar.gz lwn-a26ee60f90daffe1de6be0d093af86e7279b3dfd.zip | |
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.c | 7 |
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; |