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| author |  Tiezhu Yang <yangtiezhu@loongson.cn>
| 2021-05-10 20:51:59 +0800 |
|---|---|---|
| committer |  Daniel Borkmann <daniel@iogearbox.net>
| 2021-05-12 22:45:37 +0200 |
| commit | 3f2870989f10ddb276063097d8e44e543277694a (patch) | |
| tree | e8b4754f17bd4317d8cbe1d1a77f8693413f35b0 /arch/arm64/net | |
| parent | samples, bpf: Suppress compiler warning (diff) | |
| download | linux-3f2870989f10ddb276063097d8e44e543277694a.tar.gz linux-3f2870989f10ddb276063097d8e44e543277694a.tar.bz2 linux-3f2870989f10ddb276063097d8e44e543277694a.zip | |
bpf, arm64: Replace STACK_ALIGN() with round_up() to align stack size
Use the common function round_up() directly to show the align size
explicitly, the function STACK_ALIGN() is needless, remove it. Other
JITs also just rely on round_up().
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/1620651119-5663-1-git-send-email-yangtiezhu@loongson.cn
Diffstat (limited to 'arch/arm64/net')
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index f7b194878a99..978502629f4e 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -178,9 +178,6 @@ static bool is_addsub_imm(u32 imm) return !(imm & ~0xfff) || !(imm & ~0xfff000); } -/* Stack must be multiples of 16B */ -#define STACK_ALIGN(sz) (((sz) + 15) & ~15) - /* Tail call offset to jump into */ #if IS_ENABLED(CONFIG_ARM64_BTI_KERNEL) #define PROLOGUE_OFFSET 8 @@ -255,7 +252,8 @@ static int build_prologue(struct jit_ctx *ctx, bool ebpf_from_cbpf) emit(A64_BTI_J, ctx); } - ctx->stack_size = STACK_ALIGN(prog->aux->stack_depth); + /* Stack must be multiples of 16B */ + ctx->stack_size = round_up(prog->aux->stack_depth, 16); /* Set up function call stack */ emit(A64_SUB_I(1, A64_SP, A64_SP, ctx->stack_size), ctx); |