kernel.git/arch/powerpc/kernel/nvram_64.c, branch linux-4.11.y

pstore: Fix flags to enable dumps on powerpc

2017-05-20T12:49:51Z

commit 041939c1ec54208b42f5cd819209173d52a29d34 upstream. After commit c950fd6f201a kernel registers pstore write based on flag set. Pstore write for powerpc is broken as flags(PSTORE_FLAGS_DMESG) is not set for powerpc architecture. On panic, kernel doesn't write message to /fs/pstore/dmesg*(Entry doesn't gets created at all). This patch enables pstore write for powerpc architecture by setting PSTORE_FLAGS_DMESG flag. Fixes: c950fd6f201a ("pstore: Split pstore fragile flags") Signed-off-by: Ankit Kumar Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

Replace with globally

2016-12-24T19:46:01Z

This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*' sed -i -e "s!$PATT!#include !" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro Signed-off-by: Linus Torvalds

powerpc/nvram: Fix an incorrect partition merge

2016-09-20T06:15:42Z

When we merge two contiguous partitions whose signatures are marked NVRAM_SIG_FREE, We need update prev's length and checksum, then write it to nvram, not cur's. So lets fix this mistake now. Also use memset instead of strncpy to set the partition's name. It's more readable if we want to fill up with duplicate chars . Fixes: fa2b4e54d41f ("powerpc/nvram: Improve partition removal") Signed-off-by: Pan Xinhui Signed-off-by: Michael Ellerman

powerpc/nvram: Fix a memory leak in err path

2016-09-20T06:15:33Z

If kmemdup fails, We need kfree *buff* first then return -ENOMEM. Otherwise there is a memory leak. Signed-off-by: Pan Xinhui Reviewed-by: Nathan Fontenot Signed-off-by: Michael Ellerman

powerpc/sparse: Make a bunch of things static

2016-09-13T07:35:47Z

Squash a bunch of sparse warnings by making things static. Reviewed-by: Andrew Donnellan Signed-off-by: Daniel Axtens Signed-off-by: Michael Ellerman

pstore: add lzo/lz4 compression support

2016-06-02T17:59:31Z

Like zlib compression in pstore, this patch added lzo and lz4 compression support so that users can have more options and better compression ratio. The original code treats the compressed data together with the uncompressed ECC correction notice by using zlib decompress. The ECC correction notice is missing in the decompression process. The treatment also makes lzo and lz4 not working. So I treat them separately by using pstore_decompress() to treat the compressed data, and memcpy() to treat the uncompressed ECC correction notice. Signed-off-by: Geliang Tang Signed-off-by: Kees Cook

powerpc: make kernel/nvram_64.c explicitly non-modular

2016-04-11T10:30:43Z

The Makefile/Kconfig currently controlling compilation of this code is: obj-$(CONFIG_PPC64) += setup_64.o sys_ppc32.o \ signal_64.o ptrace32.o \ paca.o nvram_64.o firmware.o arch/powerpc/platforms/Kconfig.cputype:config PPC64 arch/powerpc/platforms/Kconfig.cputype: bool "64-bit kernel" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_init translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. We don't replace module.h with init.h since the file already has that. We delete the MODULE_LICENSE tag since that information is already contained at the top of the file in the comments. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Hari Bathini Cc: Nathan Fontenot Cc: Andrzej Hajda Cc: Anton Blanchard Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Paul Gortmaker Reviewed-by: Nathan Fontenot Signed-off-by: Michael Ellerman

don't open-code generic_file_llseek_size()

2015-12-09T18:00:45Z

Signed-off-by: Al Viro

powerpc/nvram: Fix function name in some errors messages.

2015-10-02T12:55:05Z

'nvram_create_os_partition' should be 'nvram_create_partition'. Use __func__ to have it right, as done elsewhere in this file. Signed-off-by: Christophe Jaillet Signed-off-by: Michael Ellerman

powerpc/nvram: Add missing kfree in error path

2015-10-02T12:54:55Z

If 'nvram_write_header' fails, then 'new_part' should be freed, otherwise, there is a memory leak. Signed-off-by: Christophe Jaillet Signed-off-by: Michael Ellerman