BMC/Intel-BMC/linux.git/arch/powerpc/kernel/nvram_64.c, branch dev

powerpc/rtas: Make timestamp related code y2038-safe

2015-03-23T03:06:11+00:00

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

2015-03-23T03:06:10+00:00

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

2015-03-23T03:05:49+00:00

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

2014-09-25T13:14:41+00:00

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

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

2013-11-25T00:50:57+00:00

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

powerpc/nvram: Fix endian issue when using the partition length

2013-10-31T01:37:28+00:00

When reading partitions, the length has to be translated from big endian to the endian order of the host. Similarly, when writing partitions, the length needs to be in big endian order. The userspace tool 'nvram' needs a similar fix as it is reading and writing partitions through /dev/nram : http://sourceforge.net/p/powerpc-utils/mailman/message/31571277/ Signed-off-by: Cedric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/nvram64: Need return the related error code on failure occurs

2013-07-01T01:46:56+00:00

When error occurs, need return the related error code to let upper caller know about it. ppc_md.nvram_size() can return the error code (e.g. core99_nvram_size() in 'arch/powerpc/platforms/powermac/nvram.c'). Also set ret value when only need it, so can save structions for normal cases. Signed-off-by: Chen Gang Signed-off-by: Benjamin Herrenschmidt

powerpc: remove cast for kmalloc/kzalloc return value

2013-03-18T13:16:00+00:00

remove cast for kmalloc/kzalloc return value. Signed-off-by: Zhang Yanfei Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Andrew Morton Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Jiri Kosina

powerpc/nvram: Generalize code for OS partitions in NVRAM

2011-03-04T07:19:04+00:00

Adapt the functions used to create and write to the RTAS-log partition to work with any OS-type partition. Signed-off-by: Jim Keniston Signed-off-by: Benjamin Herrenschmidt

powerpc/nvram: Handle partition names >= 12 chars

2010-11-30T04:43:51+00:00

The name field in the nvram_header can be < 12 chars, null-terminated, or 12 chars without the null. Handle this safely. Signed-off-by: Jim Keniston Signed-off-by: Benjamin Herrenschmidt