LoongArch: BPF: Don't align trampoline size

Currently, arch_alloc_bpf_trampoline() use bpf_prog_pack_alloc() which
will pack multiple trampolines into a huge page. So, no need to assume
the trampoline size is page aligned.

Cc: stable@vger.kernel.org
Tested-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index 8c3c211983f94fe304e7a7a01ccc374c2dba33a7..8d5547014b2c48d22e75ce50efb943218a3d87ca 100644 (file)
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -1743,8 +1743,7 @@ int arch_bpf_trampoline_size(const struct btf_func_model *m, u32 flags,
 
        ret = __arch_prepare_bpf_trampoline(&ctx, &im, m, tlinks, func_addr, flags);
 
-       /* Page align */
-       return ret < 0 ? ret : round_up(ret * LOONGARCH_INSN_SIZE, PAGE_SIZE);
+       return ret < 0 ? ret : ret * LOONGARCH_INSN_SIZE;
 }
 
 struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)