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Code Issues Releases Wiki Activity

riscv/mm: Use BUG_ON instead of if condition followed by BUG.

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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>
This commit is contained in:
zhouchuangao 2021-03-30 06:56:26 -07:00 committed by Palmer Dabbelt
parent b1ebaa0e13
commit e75e6bf47a
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1 changed files with 2 additions and 2 deletions
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4
arch/riscv/mm/init.c
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@ -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);
}