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Just a couple of fixes, nothing extraordinary. 

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Merge tag 'for-v3.8' of git://git.infradead.org/users/cbou/linux-pstore

Pull pstore update from Anton Vorontsov:
 "Here are just a few fixups for the pstore subsystem, nothing special
  this time"

* tag 'for-v3.8' of git://git.infradead.org/users/cbou/linux-pstore:
  pstore/ftrace: Adjust for ftrace_ops->func prototype change
  pstore/ram: Fix bounds checks for mem_size, record_size, console_size and ftrace_size
  pstore/ram: Fix undefined usage of rounddown_pow_of_two(0)
  pstore/ram: Fixup section annotations
wifi-calibration
Linus Torvalds 2012-12-15 12:51:50 -08:00
parent c13e69b2f0 ebacfd1ece
commit 75e300c8ba
2 changed files with 34 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/pstore/ftrace.c
View File

@ -28,7 +28,9 @@
#include "internal.h"
static void notrace pstore_ftrace_call(unsigned long ip,
unsigned long parent_ip)
unsigned long parent_ip,
struct ftrace_ops *op,
struct pt_regs *regs)
{
unsigned long flags;
struct pstore_ftrace_record rec = {};

42
fs/pstore/ram.c
View File

@ -188,7 +188,7 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;
struct persistent_ram_zone *prz = cxt->przs[cxt->dump_write_cnt];
struct persistent_ram_zone *prz;
size_t hlen;
if (type == PSTORE_TYPE_CONSOLE) {
@ -225,6 +225,11 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
if (part != 1)
return -ENOSPC;
if (!cxt->przs)
return -ENOSPC;
prz = cxt->przs[cxt->dump_write_cnt];
hlen = ramoops_write_kmsg_hdr(prz);
if (size + hlen > prz->buffer_size)
size = prz->buffer_size - hlen;
@ -286,8 +291,9 @@ static void ramoops_free_przs(struct ramoops_context *cxt)
kfree(cxt->przs);
}
static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
phys_addr_t *paddr, size_t dump_mem_sz)
static int __devinit ramoops_init_przs(struct device *dev,
struct ramoops_context *cxt,
phys_addr_t *paddr, size_t dump_mem_sz)
{
int err = -ENOMEM;
int i;
@ -295,6 +301,11 @@ static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
if (!cxt->record_size)
return 0;
if (*paddr + dump_mem_sz - cxt->phys_addr > cxt->size) {
dev_err(dev, "no room for dumps\n");
return -ENOMEM;
}
cxt->max_dump_cnt = dump_mem_sz / cxt->record_size;
if (!cxt->max_dump_cnt)
return -ENOMEM;
@ -325,15 +336,20 @@ fail_prz:
return err;
}
static int ramoops_init_prz(struct device *dev, struct ramoops_context *cxt,
struct persistent_ram_zone **prz,
phys_addr_t *paddr, size_t sz, u32 sig)
static int __devinit ramoops_init_prz(struct device *dev,
struct ramoops_context *cxt,
struct persistent_ram_zone **prz,
phys_addr_t *paddr, size_t sz, u32 sig)
{
if (!sz)
return 0;
if (*paddr + sz > *paddr + cxt->size)
if (*paddr + sz - cxt->phys_addr > cxt->size) {
dev_err(dev, "no room for mem region (0x%zx@0x%llx) in (0x%lx@0x%llx)\n",
sz, (unsigned long long)*paddr,
cxt->size, (unsigned long long)cxt->phys_addr);
return -ENOMEM;
}
*prz = persistent_ram_new(*paddr, sz, sig, cxt->ecc_size);
if (IS_ERR(*prz)) {
@ -373,10 +389,14 @@ static int __devinit ramoops_probe(struct platform_device *pdev)
goto fail_out;
}
pdata->mem_size = rounddown_pow_of_two(pdata->mem_size);
pdata->record_size = rounddown_pow_of_two(pdata->record_size);
pdata->console_size = rounddown_pow_of_two(pdata->console_size);
pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size);
if (!is_power_of_2(pdata->mem_size))
pdata->mem_size = rounddown_pow_of_two(pdata->mem_size);
if (!is_power_of_2(pdata->record_size))
pdata->record_size = rounddown_pow_of_two(pdata->record_size);
if (!is_power_of_2(pdata->console_size))
pdata->console_size = rounddown_pow_of_two(pdata->console_size);
if (!is_power_of_2(pdata->ftrace_size))
pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size);
cxt->dump_read_cnt = 0;
cxt->size = pdata->mem_size;