diff options
Diffstat (limited to 'arch/blackfin/mm/isram-driver.c')
| -rw-r--r-- | arch/blackfin/mm/isram-driver.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/blackfin/mm/isram-driver.c b/arch/blackfin/mm/isram-driver.c index 84cdc5a1c139..39b058564f62 100644 --- a/arch/blackfin/mm/isram-driver.c +++ b/arch/blackfin/mm/isram-driver.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <linux/sched.h> @@ -62,7 +63,7 @@ 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 +94,7 @@ 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 +121,7 @@ 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); } |