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[ARM] S3C: Avoid checking the task stackpage in pm-check

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When doing the CRC check of the memory, avoid checking
the page that our stack is residing in as this changes
during the execution of the suspend and resume.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2008-12-12 00:24:36 +00:00
parent 67c2addcb0
commit 663a83048c
1 changed files with 9 additions and 1 deletions
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10
arch/arm/plat-s3c/pm-check.c
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@ -152,7 +152,7 @@ static inline int in_region(void *ptr, int size, void *what, size_t whatsz)
} }
/** /**
* s3c_pm_runcheck*() - helper to check a resource on restore. * s3c_pm_runcheck() - helper to check a resource on restore.
* @res: The resource to check * @res: The resource to check
* @vak: Pointer to list of CRC32 values to check. * @vak: Pointer to list of CRC32 values to check.
* *
@ -166,9 +166,12 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
void *save_at = phys_to_virt(s3c_sleep_save_phys); void *save_at = phys_to_virt(s3c_sleep_save_phys);
unsigned long addr; unsigned long addr;
unsigned long left; unsigned long left;
void *stkpage;
void *ptr; void *ptr;
u32 calc; u32 calc;
stkpage = (void *)((u32)&calc & ~PAGE_MASK);
for (addr = res->start; addr < res->end; for (addr = res->start; addr < res->end;
addr += CHECK_CHUNKSIZE) { addr += CHECK_CHUNKSIZE) {
left = res->end - addr; left = res->end - addr;
@ -178,6 +181,11 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
ptr = phys_to_virt(addr); ptr = phys_to_virt(addr);
if (in_region(ptr, left, stkpage, 4096)) {
S3C_PMDBG("skipping %08lx, has stack in\n", addr);
goto skip_check;
}
if (in_region(ptr, left, crcs, crc_size)) { if (in_region(ptr, left, crcs, crc_size)) {
S3C_PMDBG("skipping %08lx, has crc block in\n", addr); S3C_PMDBG("skipping %08lx, has crc block in\n", addr);
goto skip_check; goto skip_check;