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Blackfin: isram: add unlikely to sanity checks

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

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2009-12-25 15:34:08 +00:00
parent 0ea19c64e3
commit f05ede3a94
1 changed files with 3 additions and 3 deletions
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6
arch/blackfin/mm/isram-driver.c
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@ -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);
}