bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

LoongArch: BPF: Rename and refactor validate_code()

Browse Source 
1. Rename the existing validate_code() to validate_ctx()
2. Factor out the code validation handling into a new helper
   validate_code()

Then:

* validate_code() is used to check the validity of code.
* validate_ctx() is used to check both code validity and table entry
  correctness.

The new validate_code() will be used in subsequent changes.

Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Co-developed-by: George Guo <guodongtai@kylinos.cn>
Signed-off-by: George Guo <guodongtai@kylinos.cn>
Signed-off-by: Chenghao Duan <duanchenghao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Chenghao Duan
2025-08-05 19:00:18 +08:00
committed by Huacai Chen
parent 6ab55e0a9e
commit ed1a1fe6ec
1 changed files with 9 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/loongarch/net/bpf_jit.c
View File

@@ -1180,6 +1180,14 @@ static int validate_code(struct jit_ctx *ctx)
return -1;
}
return 0;
}
static int validate_ctx(struct jit_ctx *ctx)
{
if (validate_code(ctx))
return -1;
if (WARN_ON_ONCE(ctx->num_exentries != ctx->prog->aux->num_exentries))
return -1;
@@ -1288,7 +1296,7 @@ skip_init_ctx:
build_epilogue(&ctx);
/* 3. Extra pass to validate JITed code */
if (validate_code(&ctx)) {
if (validate_ctx(&ctx)) {
bpf_jit_binary_free(header);
prog = orig_prog;
goto out_offset;