kernel.git/arch/powerpc/kernel/nvram_64.c, branch linux-4.4.y

powerpc/nvram: Fix an incorrect partition merge

2016-10-31T10:14:01Z

commit 11b7e154b132232535befe51c55db048069c8461 upstream. 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 Signed-off-by: Greg Kroah-Hartman

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

powerpc/nvram: print no error when pstore backend is not nvram

2015-08-19T06:14:21Z

Pstore only supports one backend at a time. The preferred pstore backend is set by passing the pstore.backend= argument to the kernel at boot time. Currently, while trying to register with pstore, nvram throws an error message even when "pstore.backend != nvram", which is unnecessary. This patch removes the error message in case "pstore.backend != nvram". Signed-off-by: Hari Bathini Signed-off-by: Michael Ellerman

powerpc/nvram: use kmemdup rather than duplicating its implementation

2015-08-18T09:34:43Z

The patch was generated using fixed coccinelle semantic patch scripts/coccinelle/api/memdup.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320 Signed-off-by: Andrzej Hajda Reviewed-by: Nathan Fontenot Signed-off-by: Michael Ellerman

powerpc/rtas: Make timestamp related code y2038-safe

2015-03-23T03:06:11Z

While we are here, let us make timestamp related code y2038-safe. Suggested-by: Arnd Bergmann Signed-off-by: Hari Bathini Signed-off-by: Michael Ellerman

powerpc/powernv: Add pstore support on powernv

2015-03-23T03:06:10Z

This patch extends pstore, a generic interface to platform dependent persistent storage, support for powernv platform to capture certain useful information, during dying moments. Such support is already in place for pseries platform. This patch re-uses most of that code. It is a common practice to compile kernels with both CONFIG_PPC_PSERIES=y and CONFIG_PPC_POWERNV=y. The code in nvram_init_oops_partition() routine still works as intended, as the caller is platform specific code which passes the appropriate value for "rtas_partition_exists" parameter. In all other places, where CONFIG_PPC_PSERIES or CONFIG_PPC_POWERNV flag is used in this patchset, it is to reduce the kernel size in cases where this flag is not set and doesn't have any impact logic wise. Signed-off-by: Hari Bathini Signed-off-by: Michael Ellerman

powerpc/nvram: Move generic code for nvram and pstore

2015-03-23T03:05:49Z

With minor checks, we can move most of the code for nvram under pseries to a common place to be re-used by other powerpc platforms like powernv. This patch moves such common code to arch/powerpc/kernel/nvram_64.c file. Signed-off-by: Hari Bathini [mpe: Move select of ZLIB_DEFLATE to PPC64 to fix the build] Signed-off-by: Michael Ellerman

powerpc: Make a bunch of things static

2014-09-25T13:14:41Z

Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow

2013-11-25T00:50:57Z

for tmp_part->header.name: it is "Terminating null required only for names < 12 chars". so need to limit the %.12s for it in printk additional info: %12s limit the width, not for the original string output length if name length is more than 12, it still can be fully displayed. if name length is less than 12, the ' ' will be filled before name. %.12s truly limit the original string output length (precision) Signed-off-by: Chen Gang Signed-off-by: Benjamin Herrenschmidt