From nobody Mon Oct 6 06:29:02 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5C9C4C81; Thu, 24 Jul 2025 14:21:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753366883; cv=none; b=bv6tv5NG4w0OaUB8hyxB4l6ByyCBslt1zboONJPBNRh31NSLiKpIpoJD8JOKHBgfYFq4FCVn10CL7aUmgLtws0+L8xMOpYq7b1kU/0sUqBvr0RaLp8xsIEtM5/AhRhQZt1rtTIsesHUPTxQFO6x3sqVpdnBLg/gdIeqm1iU6n8E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753366883; c=relaxed/simple; bh=Nfh56CQuz1an1jDX27wZ7yx9EpTKbh3jPnEDXqGC1fY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AL6FAqezaUAxv3C0l2vMempmNJcg8LxszHXbZTGF8MFdkYCEB5uQo/NlsOl3p2BmRuFsjcWDni0vUedKg22Ia89dYULlsyi2zaLsfshTOD5vCD4WVKEm6GfSndvf/zp3JTZxsCVY9zT/dody9hk7V/DiEbHKUUOTsHyDzm9Krb4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 7475fda6689911f0b29709d653e92f7d-20250724 X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NO_NAME, HR_CTE_8B, HR_CTT_MISS HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME, HR_SJ_DIGIT_LEN HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM, HR_SJ_PHRASE HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT, HR_TO_NO_NAME IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_EXISTED, SN_EXISTED SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS, CIE_BAD, CIE_GOOD_SPF GTI_FG_BS, GTI_RG_INFO, GTI_C_BU, AMN_T1, AMN_GOOD AMN_C_TI, AMN_C_BU, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.45,REQID:fe4bb269-3832-4bb1-ae50-c1a13c3f8f67,IP:10, URL:0,TC:0,Content:0,EDM:0,RT:0,SF:-9,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:1 X-CID-INFO: VERSION:1.1.45,REQID:fe4bb269-3832-4bb1-ae50-c1a13c3f8f67,IP:10,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:-9,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:1 X-CID-META: VersionHash:6493067,CLOUDID:6edf40f4f4dfadf6265e7f2f1bdf237e,BulkI D:250724222116OCU2WMVN,BulkQuantity:0,Recheck:0,SF:17|19|24|38|43|66|74|78 |81|82|102,TC:nil,Content:0|50,EDM:-3,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil ,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE: 0,ARC:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_FSI X-UUID: 7475fda6689911f0b29709d653e92f7d-20250724 X-User: duanchenghao@kylinos.cn Received: from localhost.localdomain [(223.70.159.239)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 1862958343; Thu, 24 Jul 2025 22:21:14 +0800 From: Chenghao Duan To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, yangtiezhu@loongson.cn, hengqi.chen@gmail.com, chenhuacai@kernel.org Cc: martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, kernel@xen0n.name, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, bpf@vger.kernel.org, guodongtai@kylinos.cn, duanchenghao@kylinos.cn, youling.tang@linux.dev, jianghaoran@kylinos.cn, vincent.mc.li@gmail.com Subject: [PATCH v4 2/5] LoongArch: BPF: Update the code to rename validate_code to validate_ctx Date: Thu, 24 Jul 2025 22:19:26 +0800 Message-Id: <20250724141929.691853-3-duanchenghao@kylinos.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250724141929.691853-1-duanchenghao@kylinos.cn> References: <20250724141929.691853-1-duanchenghao@kylinos.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Rename the existing validate_code() to validate_ctx() Factor out the code validation handling into a new helper validate_code() * 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. Co-developed-by: George Guo Signed-off-by: George Guo Signed-off-by: Chenghao Duan Reviewed-by: Hengqi Chen Reviewed-by: Huacai Chen --- arch/loongarch/net/bpf_jit.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c index fa1500d4a..7032f11d3 100644 --- a/arch/loongarch/net/bpf_jit.c +++ b/arch/loongarch/net/bpf_jit.c @@ -1180,6 +1180,14 @@ static int validate_code(struct jit_ctx *ctx) return -1; } =20 + return 0; +} + +static int validate_ctx(struct jit_ctx *ctx) +{ + if (validate_code(ctx)) + return -1; + if (WARN_ON_ONCE(ctx->num_exentries !=3D ctx->prog->aux->num_exentries)) return -1; =20 @@ -1288,7 +1296,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog = *prog) build_epilogue(&ctx); =20 /* 3. Extra pass to validate JITed code */ - if (validate_code(&ctx)) { + if (validate_ctx(&ctx)) { bpf_jit_binary_free(header); prog =3D orig_prog; goto out_offset; --=20 2.25.1