diff options
| author | zhouchuangao <zhouchuangao@vivo.com> | 2021-03-30 15:56:26 +0200 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-04-26 17:25:18 +0200 |
| commit | e75e6bf47a4723ce16f65c7387c20a8c18a1c13b (patch) | |
| tree | e65cc09e56b4ad55035e9d9b37639ffb84523873 /arch/riscv | |
| parent | riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe (diff) | |
| download | linux-e75e6bf47a4723ce16f65c7387c20a8c18a1c13b.tar.xz linux-e75e6bf47a4723ce16f65c7387c20a8c18a1c13b.zip | |
riscv/mm: Use BUG_ON instead of if condition followed by BUG.
BUG_ON() uses unlikely in if(), which can be optimized at compile time.
Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/mm/init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 9914ca0d789b..a2f4c148f02e 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -232,8 +232,8 @@ static phys_addr_t alloc_pte_late(uintptr_t va) unsigned long vaddr; vaddr = __get_free_page(GFP_KERNEL); - if (!vaddr || !pgtable_pte_page_ctor(virt_to_page(vaddr))) - BUG(); + BUG_ON(!vaddr || !pgtable_pte_page_ctor(virt_to_page(vaddr))); + return __pa(vaddr); } |