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>

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 9914ca0..a2f4c14 100644 (file)
--- 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);
 }