kernel.git/arch/s390/boot, branch linux-3.10.y

s390/decompressor: fix initrd corruption caused by bss clear

2017-06-07T22:47:07Z

commit d82c0d12c92705ef468683c9b7a8298dd61ed191 upstream. Reorder the operations in decompress_kernel() to ensure initrd is moved to a safe location before the bss section is zeroed. During decompression bss can overlap with the initrd and this can corrupt the initrd contents depending on the size of the compressed kernel (which affects where the initrd is placed by the bootloader) and the size of the bss section of the decompressor. Also use the correct initrd size when checking for overlaps with parmblock. Fixes: 06c0dd72aea3 ([S390] fix boot failures with compressed kernels) Reviewed-by: Joy Latten Reviewed-by: Vineetha HariPai Signed-off-by: Marcelo Henrique Cerri Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky Signed-off-by: Willy Tarreau

s390: fix linker script for 31 bit builds

2012-10-18T15:50:10Z

Because of a change in the s390 arch backend of binutils (commit 23ecd77 "Pick the default arch depending on the target size" in binutils repo) 31 bit builds will fail since the linker would now try to create 64 bit binary output. Fix this by setting OUTPUT_ARCH to s390:31-bit instead of s390. Thanks to Andreas Krebbel for figuring out the issue. Fixes this build error: LD init/built-in.o s390x-4.7.2-ld: s390:31-bit architecture of input file `arch/s390/kernel/head.o' is incompatible with s390:64-bit output Cc: Andreas Krebbel Cc: stable@vger.kernel.org Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/ipl,decrompressor: disable branch profiling

2012-09-26T13:45:21Z

The early kernel decrompressing code can't call into the kernel in order to profile branches. Fixes this link error: arch/s390/boot/compressed/misc.o: In function `decompress_kernel': misc.c:(.text+0x9a6): undefined reference to `ftrace_likely_update' Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/string: provide asm lib functions for memcpy and memcmp

2012-09-26T13:44:50Z

Our memcpy and memcmp variants were implemented by calling the corresponding gcc builtin variants. However gcc is free to replace a call to __builtin_memcmp with a call to memcmp which, when called, will result in an endless recursion within memcmp. So let's provide asm variants and also fix the variants that are used for uncompressing the kernel image. In addition remove all other occurences of builtin function calls. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: add various .gitignore files.

2012-05-16T12:42:41Z

Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] Remove Kerntypes leftovers

2011-12-27T10:27:12Z

Remove last traces of our kerntypes patch which was always an addon patch which never got upstream. Somehow a few bits got upstream anyway. Since kerntypes aren't used anymore and lcrash isn't maintained (for s390 at least) remove the last traces of kerntypes that somehow went upstream. Also remove the documentation that mentions lcrash. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] sparse: fix sparse static warnings

2011-10-30T14:16:46Z

Make functions and data static to avoid sparse warnings. Signed-off-by: Martin Schwidefsky

[S390] fix s390 assembler code alignments

2011-07-24T08:48:21Z

The alignment is missing for various global symbols in s390 assembly code. With a recent gcc and an instruction like stgrl this can lead to a specification exception if the instruction uses such a mis-aligned address. Specify the alignment explicitely and while add it define __ALIGN for s390 and use the ENTRY define to save some lines of code. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky

Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-03-21T01:14:55Z

* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits) video: change to new flag variable scsi: change to new flag variable rtc: change to new flag variable rapidio: change to new flag variable pps: change to new flag variable net: change to new flag variable misc: change to new flag variable message: change to new flag variable memstick: change to new flag variable isdn: change to new flag variable ieee802154: change to new flag variable ide: change to new flag variable hwmon: change to new flag variable dma: change to new flag variable char: change to new flag variable fs: change to new flag variable xtensa: change to new flag variable um: change to new flag variables s390: change to new flag variable mips: change to new flag variable ... Fix up trivial conflict in drivers/hwmon/Makefile

s390: change to new flag variable

2011-03-17T13:02:57Z

Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek