Subject: [merged] initramfs-debug-detected-compression-method.patch removed from -mm tree To: dan@xxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 08 Apr 2014 14:37:37 -0700 The patch titled Subject: initramfs: debug detected compression method has been removed from the -mm tree. Its filename was initramfs-debug-detected-compression-method.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: "Daniel M. Weeks" <dan@xxxxxxxxxxxx> Subject: initramfs: debug detected compression method This can greatly aid in narrowing down the real source of initramfs problems such as failures related to the compression of the in-kernel initramfs when an external initramfs is in use as well. Existing errors are ambiguous as to which initramfs is a problem and why. [akpm@xxxxxxxxxxxxxxxxxxxx: use pr_debug()] Signed-off-by: Daniel M. Weeks <dan@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- init/initramfs.c | 1 + lib/decompress.c | 3 +++ 2 files changed, 4 insertions(+) diff -puN init/initramfs.c~initramfs-debug-detected-compression-method init/initramfs.c --- a/init/initramfs.c~initramfs-debug-detected-compression-method +++ a/init/initramfs.c @@ -455,6 +455,7 @@ static char * __init unpack_to_rootfs(ch } this_header = 0; decompress = decompress_method(buf, len, &compress_name); + pr_debug("Detected %s compressed data\n", compress_name); if (decompress) { res = decompress(buf, len, NULL, flush_buffer, NULL, &my_inptr, error); diff -puN lib/decompress.c~initramfs-debug-detected-compression-method lib/decompress.c --- a/lib/decompress.c~initramfs-debug-detected-compression-method +++ a/lib/decompress.c @@ -16,6 +16,7 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/init.h> +#include <linux/printk.h> #ifndef CONFIG_DECOMPRESS_GZIP # define gunzip NULL @@ -61,6 +62,8 @@ decompress_fn __init decompress_method(c if (len < 2) return NULL; /* Need at least this much... */ + pr_debug("Compressed data magic: %#.2x %#.2x\n", inbuf[0], inbuf[1]); + for (cf = compressed_formats; cf->name; cf++) { if (!memcmp(inbuf, cf->magic, 2)) break; _ Patches currently in -mm which might be from dan@xxxxxxxxxxxx are origin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html