diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-07-29 17:22:34 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-11-30 15:32:10 +1100 |
| commit | cef0d5ad62ec6e0c8456b8f58e898aa3219311a5 (patch) | |
| tree | bbb294bb1a2c638193839398388012409beb5548 /arch | |
| parent | 578914cffc283b907777796420148d582072cbae (diff) | |
powerpc/nvram: Completely clear a new partition
When creating a partition, we clear it entirely rather than
just the first two words since the previous code was rather
specific to the pseries log partition format.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/nvram_64.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index f7538820c03..02737e68755 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -320,7 +320,7 @@ static int __init nvram_create_partition(const char *name, int sig, struct nvram_partition *part; struct nvram_partition *new_part; struct nvram_partition *free_part = NULL; - int seq_init[2] = { 0, 0 }; + static char nv_init_vals[16]; loff_t tmp_index; long size = 0; int rc; @@ -379,14 +379,15 @@ static int __init nvram_create_partition(const char *name, int sig, return rc; } - /* make sure and initialize to zero the sequence number and the error - type logged */ - tmp_index = new_part->index + NVRAM_HEADER_LEN; - rc = ppc_md.nvram_write((char *)&seq_init, sizeof(seq_init), &tmp_index); - if (rc <= 0) { - printk(KERN_ERR "nvram_create_os_partition: nvram_write " - "failed (%d)\n", rc); - return rc; + /* Clear the partition */ + for (tmp_index = new_part->index + NVRAM_HEADER_LEN; + tmp_index < ((size - 1) * NVRAM_BLOCK_LEN); + tmp_index += NVRAM_BLOCK_LEN) { + rc = ppc_md.nvram_write(nv_init_vals, NVRAM_BLOCK_LEN, &tmp_index); + if (rc <= 0) { + pr_err("nvram_create_partition: nvram_write failed (%d)\n", rc); + return rc; + } } nvram_error_log_index = new_part->index + NVRAM_HEADER_LEN; |