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Commit f05ede3a authored by Mike Frysinger's avatar Mike Frysinger
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Blackfin: isram: add unlikely to sanity checks 



Don't want the compiler assuming the rare sanity checks are the norm and
optimize for those paths.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 0ea19c64

arch/blackfin/mm/isram-driver.c

+3 −3
Original line number Diff line number Diff line
@@ -62,7 +62,7 @@ static void isram_write(const void *addr, uint64_t data) 
	uint32_t cmd;

	unsigned long flags;



	if (addr >= (void *)(L1_CODE_START + L1_CODE_LENGTH))

	if (unlikely(addr >= (void *)(L1_CODE_START + L1_CODE_LENGTH)))

		return;



	cmd = IADDR2DTEST(addr) | 2;             /* write */
@@ -93,7 +93,7 @@ static uint64_t isram_read(const void *addr) 
	unsigned long flags;

	uint64_t ret;



	if (addr > (void *)(L1_CODE_START + L1_CODE_LENGTH))

	if (unlikely(addr > (void *)(L1_CODE_START + L1_CODE_LENGTH)))

		return 0;



	cmd = IADDR2DTEST(addr) | 0;              /* read */
@@ -120,7 +120,7 @@ static bool isram_check_addr(const void *addr, size_t n) 
{

	if ((addr >= (void *)L1_CODE_START) &&

	    (addr < (void *)(L1_CODE_START + L1_CODE_LENGTH))) {

		if ((addr + n) > (void *)(L1_CODE_START + L1_CODE_LENGTH)) {

		if (unlikely((addr + n) > (void *)(L1_CODE_START + L1_CODE_LENGTH))) {

			show_stack(NULL, NULL);

			pr_err("copy involving %p length (%zu) too long\n", addr, n);

		}