[PATCH v2] riscv, bpf: Use STACK_ALIGN macro for size rounding up

From: Xiao Wang
Date: Wed May 22 2024 - 23:15:43 EST


Use the macro STACK_ALIGN that is defined in asm/processor.h for stack size
rounding up, just like bpf_jit_comp32.c does.

Signed-off-by: Xiao Wang <xiao.w.wang@xxxxxxxxx>
Reviewed-by: Pu Lehui <pulehui@xxxxxxxxxx>
---
v2:
* The patch targets bpf-next tree, rather than riscv-next. (Lehui)
---
arch/riscv/net/bpf_jit_comp64.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c
index 79a001d5533e..c21a0ff23415 100644
--- a/arch/riscv/net/bpf_jit_comp64.c
+++ b/arch/riscv/net/bpf_jit_comp64.c
@@ -868,7 +868,7 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
stack_size += 8;
sreg_off = stack_size;

- stack_size = round_up(stack_size, 16);
+ stack_size = round_up(stack_size, STACK_ALIGN);

if (!is_struct_ops) {
/* For the trampoline called from function entry,
@@ -1960,7 +1960,7 @@ void bpf_jit_build_prologue(struct rv_jit_context *ctx, bool is_subprog)
{
int i, stack_adjust = 0, store_offset, bpf_stack_adjust;

- bpf_stack_adjust = round_up(ctx->prog->aux->stack_depth, 16);
+ bpf_stack_adjust = round_up(ctx->prog->aux->stack_depth, STACK_ALIGN);
if (bpf_stack_adjust)
mark_fp(ctx);

@@ -1982,7 +1982,7 @@ void bpf_jit_build_prologue(struct rv_jit_context *ctx, bool is_subprog)
if (ctx->arena_vm_start)
stack_adjust += 8;

- stack_adjust = round_up(stack_adjust, 16);
+ stack_adjust = round_up(stack_adjust, STACK_ALIGN);
stack_adjust += bpf_stack_adjust;

store_offset = stack_adjust - 8;
--
2.25.1