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Commit 663a8304 authored by Ben Dooks's avatar Ben Dooks
Browse files

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



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: default avatarBen Dooks <ben-linux@fluff.org>
parent 67c2addc

arch/arm/plat-s3c/pm-check.c

+9 −1
Original line number Diff line number Diff line
@@ -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

 * @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);

	unsigned long addr;

	unsigned long left;

	void *stkpage;

	void *ptr;

	u32 calc;



	stkpage = (void *)((u32)&calc & ~PAGE_MASK);



	for (addr = res->start; addr < res->end;

	     addr += CHECK_CHUNKSIZE) {

		left = res->end - addr;
@@ -178,6 +181,11 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val) 


		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)) {

			S3C_PMDBG("skipping %08lx, has crc block in\n", addr);

			goto skip_check;