From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1FDCA31F012; Thu, 14 Aug 2025 13:59:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755179972; cv=none; b=USw4p4jGKOczKwF7ON+Qf06ruwqkLhSFPghEsK98bPhgOsTMAXsYbwJw2FfIPDVBcp/gBbHvnY4DqdHt3ksdgUtYmJhKz32qKbiscxJ7nY1N5Kv+aBcc09ygVa+Vhx2LvDoO0iq+ZZEupv6Dm0US1b+6Qrbs3cjXj9viYd5rOwY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755179972; c=relaxed/simple; bh=seZWa+JyXD1KsVCPRTt17Bcrb4b3iOqD5eAQ0vNw9yc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:Content-Type: MIME-Version:Message-ID; b=CHDj6hoaJq2mI7gdOdZvov4Gw4T8hxiO9LYMcUG8St5OsGo3dDWSTF4Yo0Cx+dj9C86g558cIjW14sT7AqGQd8xBaWlWoSjp+FEZK7DKDBGbBiPIBvoGmn2yqANxW/kGeJCfcNArwOUA64ClQjpLU57eDnHTXBvZHirLmrBGwU4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=fail (1024-bit key) header.d=163.com header.i=@163.com header.b=J6LX3x5W reason="signature verification failed"; arc=none smtp.client-ip=117.135.210.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=163.com header.i=@163.com header.b="J6LX3x5W" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:To:Subject:Content-Type:MIME-Version: Message-ID; bh=W02Oc1CqUdpt5hhm3tyKd5nlAV05WQriIwEfbmSd12Y=; b=J 6LX3x5WuDzQ2zqNLm82zS8C53ilY9ddHXNx3Wdf1FUHUbeuWK/3s0AOpu9kxQaXl sINRIVq17D6X6Badqwv/5k5GlEkd6jU8LPNXFoT5n1eTC+TLlcFbKz3MCBUHjmxz N9F20MxAYO4y5luGZdPON3UqnQEAcTripElEXEwPIg= Received: from phoenix500526$163.com ( [120.230.124.83] ) by ajax-webmail-wmsvr-40-102 (Coremail) ; Thu, 14 Aug 2025 21:59:01 +0800 (CST) Date: Thu, 14 Aug 2025 21:59:01 +0800 (CST) From: =?GBK?B?1dS80ey/?= To: "Jiri Olsa" Cc: andrii@kernel.org, eddyz87@gmail.com, ast@kernel.org, daniel@iogearbox.net, shuah@kernel.org, yonghong.song@linux.dev, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re:Re: [PATCH bpf-next v8 2/2] selftests/bpf: Add an usdt_o2 test case in selftests to cover SIB handling logic X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20250519(9504565a) Copyright (c) 2002-2025 www.mailtech.cn 163com In-Reply-To: References: <20250814064504.103401-1-phoenix500526@163.com> <20250814064504.103401-3-phoenix500526@163.com> X-NTES-SC: AL_Qu2eB/2ctkEv5yeQYekfmUsVh+o9X8K1vfsk3oZfPJp+jCzp6CUNclhTBEr81tCDEh+0kAiHdzxR+P1Xbahacr8MH69Tnuzu5eMUZpxIVVBtfA== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <2ff6a1c4.8e68.198a8e07fa3.Coremail.phoenix500526@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:ZigvCgD3f9qm651oilIaAA--.2555W X-CM-SenderInfo: pskrv0dl0viiqvswqiywtou0bp/1tbiFAypiGid5AyzWwABsN X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgoKCgoKCkhpLCBKaXJpLiBJJ3ZlIGFscmVhZHkgbW9kaWZpZWQgdGhlIHVzZHRfbzIuYyB0byBn ZW5lcmF0ZSBpdHMgdXNkdCBhcmd1bWVudCBzcGVjIGluIGFzc2VtYmx5LgoKQ291bGQgeW91IGhl bHAgbWUgdmVyaWZ5IHRoaXMgbW9kaWZpY2F0aW9uIHNpbmNlIEkgY2Fubm90IHJlcHJvZHVjZSB0 aGlzIGlzc3VlLiBJIGd1ZXNzIHRoaXMKc29sdXRpb24gbWF5IHdvcmsuIAoKVGhhbmtzIQoKCgoK CkF0IDIwMjUtMDgtMTQgMTc6MDA6NTUsICJKaXJpIE9sc2EiIDxvbHNhamlyaUBnbWFpbC5jb20+ IHdyb3RlOgo+T24gVGh1LCBBdWcgMTQsIDIwMjUgYXQgMDY6NDU6MDRBTSArMDAwMCwgSmlhd2Vp IFpoYW8gd3JvdGU6Cj4+IFdoZW4gdXNpbmcgR0NDIG9uIHg4Ni02NCB0byBjb21waWxlIGFuIHVz ZHQgcHJvZyB3aXRoIC1PMSBvciBoaWdoZXIKPj4gb3B0aW1pemF0aW9uLCB0aGUgY29tcGlsZXIg d2lsbCBnZW5lcmF0ZSBTSUIgYWRkcmVzc2luZyBtb2RlIGZvciBnbG9iYWwKPj4gYXJyYXkgYW5k IFBDLXJlbGF0aXZlIGFkZHJlc3NpbmcgbW9kZSBmb3IgZ2xvYmFsIHZhcmlhYmxlLAo+PiBlLmcu ICIxQC05NiglcmJwLCVyYXgsOCkiIGFuZCAiLTFANCt0MSglcmlwKSIuCj4+IAo+PiBJbiB0aGlz IHBhdGNoOgo+PiAtIGFkZCB1c2R0X28yIHRlc3QgY2FzZSB0byBjb3ZlciBTSUIgYWRkcmVzc2lu ZyB1c2R0IGFyZ3VtZW50IHNwZWMKPj4gICBoYW5kbGluZyBsb2dpYwo+Cj5oaSwKPm9uIG15IHNl dHVwIChnY2MxNSkgdGhlIHRlc3QgZ2VuZXJhdGVzIHVzdCByZWdpc3RlciBhcmd1bWVudDoKPgo+ ICBzdGFwc2R0ICAgICAgICAgICAgICAweDAwMDAwMDJhICAgICAgIE5UX1NUQVBTRFQgKFN5c3Rl bVRhcCBwcm9iZSBkZXNjcmlwdG9ycykKPiAgICBQcm92aWRlcjogdGVzdAo+ICAgIE5hbWU6IHVz ZHQxCj4gICAgTG9jYXRpb246IDB4MDAwMDAwMDAwMDc2NzdjZSwgQmFzZTogMHgwMDAwMDAwMDAz NWJjNzI4LCBTZW1hcGhvcmU6IDB4MDAwMDAwMDAwMDAwMDAwMAo+ICAgIEFyZ3VtZW50czogOEAl cmF4Cj4KPgo+ICA3Njc3YzY6ICAgICAgIDQ4IDhiIDA0IGM1IDIwIDQ5IDljICAgIG1vdiAgICAw eDM5YzQ5MjAoLCVyYXgsOCksJXJheAo+ICA3Njc3Y2Q6ICAgICAgIDAzCj4gIDc2NzdjZTogICAg ICAgOTAgICAgICAgICAgICAgICAgICAgICAgbm9wCj4KPgo+SSdtIG5vdCBzdXJlIGlmIHRoZXJl J3MgcmVsaWFibGUgc29sdXRpb24gdG8gZ2VuZXJhdGUgU0lCIGFyZ3VtZW50IGZyb20gZ2NjLAo+ bWF5YmUgd2UgY291bGQgZ2VuZXJhdGUgYWxsIGluIGFzc2VtYmx5LCBidXQgdGhhdCBtaWdodCBn ZXQgY29tcGxpY2F0ZWQKPgo+amlya2EKPgo+Cj4+IAo+PiBTaWduZWQtb2ZmLWJ5OiBKaWF3ZWkg WmhhbyA8cGhvZW5peDUwMDUyNkAxNjMuY29tPgo+PiAtLS0KPj4gIHRvb2xzL3Rlc3Rpbmcvc2Vs ZnRlc3RzL2JwZi9NYWtlZmlsZSAgICAgICAgICB8ICAxICsKPj4gIC4uLi9zZWxmdGVzdHMvYnBm L3Byb2dfdGVzdHMvdXNkdF9vMi5jICAgICAgICB8IDY5ICsrKysrKysrKysrKysrKysrKysKPj4g IC4uLi9zZWxmdGVzdHMvYnBmL3Byb2dzL3Rlc3RfdXNkdF9vMi5jICAgICAgICB8IDM3ICsrKysr KysrKysKPj4gIDMgZmlsZXMgY2hhbmdlZCwgMTA3IGluc2VydGlvbnMoKykKPj4gIGNyZWF0ZSBt b2RlIDEwMDY0NCB0b29scy90ZXN0aW5nL3NlbGZ0ZXN0cy9icGYvcHJvZ190ZXN0cy91c2R0X28y LmMKPj4gIGNyZWF0ZSBtb2RlIDEwMDY0NCB0b29scy90ZXN0aW5nL3NlbGZ0ZXN0cy9icGYvcHJv Z3MvdGVzdF91c2R0X28yLmMKPj4gCj4+IGRpZmYgLS1naXQgYS90b29scy90ZXN0aW5nL3NlbGZ0 ZXN0cy9icGYvTWFrZWZpbGUgYi90b29scy90ZXN0aW5nL3NlbGZ0ZXN0cy9icGYvTWFrZWZpbGUK Pj4gaW5kZXggNDg2MzEwNjAzNGRmLi4yNGZmMWEzMjk2MjUgMTAwNjQ0Cj4+IC0tLSBhL3Rvb2xz L3Rlc3Rpbmcvc2VsZnRlc3RzL2JwZi9NYWtlZmlsZQo+PiArKysgYi90b29scy90ZXN0aW5nL3Nl bGZ0ZXN0cy9icGYvTWFrZWZpbGUKPj4gQEAgLTc2MCw2ICs3NjAsNyBAQCBUUlVOTkVSX0JQRl9C VUlMRF9SVUxFIDo9ICQkKGVycm9yIG5vIEJQRiBvYmplY3RzIHNob3VsZCBiZSBidWlsdCkKPj4g IFRSVU5ORVJfQlBGX0NGTEFHUyA6PQo+PiAgJChldmFsICQoY2FsbCBERUZJTkVfVEVTVF9SVU5O RVIsdGVzdF9tYXBzKSkKPj4gIAo+PiArCj4+ICAjIERlZmluZSB0ZXN0X3ZlcmlmaWVyIHRlc3Qg cnVubmVyLgo+PiAgIyBJdCBpcyBtdWNoIHNpbXBsZXIgdGhhbiB0ZXN0X21hcHMvdGVzdF9wcm9n cyBhbmQgc3VmZmljaWVudGx5IGRpZmZlcmVudCBmcm9tCj4+ICAjIHRoZW0gKGUuZy4sIHRlc3Qu aCBpcyB1c2luZyBjb21wbGV0ZWx5IHBhdHRlcm4pLCB0aGF0IGl0J3Mgd29ydGgganVzdAo+PiBk aWZmIC0tZ2l0IGEvdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMvYnBmL3Byb2dfdGVzdHMvdXNkdF9v Mi5jIGIvdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMvYnBmL3Byb2dfdGVzdHMvdXNkdF9vMi5jCj4+ IG5ldyBmaWxlIG1vZGUgMTAwNjQ0Cj4+IGluZGV4IDAwMDAwMDAwMDAwMC4uZjAyZGNmNTE4OGFi Cj4+IC0tLSAvZGV2L251bGwKPj4gKysrIGIvdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMvYnBmL3By b2dfdGVzdHMvdXNkdF9vMi5jCj4+IEBAIC0wLDAgKzEsNjkgQEAKPj4gKy8vIFNQRFgtTGljZW5z ZS1JZGVudGlmaWVyOiBHUEwtMi4wCj4+ICsvKiBDb3B5cmlnaHQgKGMpIDIwMjUgSmlhd2VpIFpo YW8gPHBob2VuaXg1MDA1MjZAMTYzLmNvbT4uICovCj4+ICsjaW5jbHVkZSA8dGVzdF9wcm9ncy5o Pgo+PiArCj4+ICsjaW5jbHVkZSAiLi4vc2R0LmgiCj4+ICsjaW5jbHVkZSAidGVzdF91c2R0X28y LnNrZWwuaCIKPj4gKwo+PiArI2lmIGRlZmluZWQoX19HTlVDX18pICYmICFkZWZpbmVkKF9fY2xh bmdfXykKPj4gK19fYXR0cmlidXRlX18oKG9wdGltaXplKCJPMiIpKSkKPj4gKyNlbmRpZgo+PiAr Cj4+ICsjZGVmaW5lIHRlc3RfdmFsdWUgMHhGRURDQkE5ODc2NTQzMjEwVUxMCj4+ICsjZGVmaW5l IFNFQyhuYW1lKSBfX2F0dHJpYnV0ZV9fKChzZWN0aW9uKG5hbWUpLCB1c2VkKSkKPj4gKwo+PiAr aW50IGxldHNfdGVzdF90aGlzKGludCk7Cj4+ICtzdGF0aWMgdm9sYXRpbGUgX191NjQgYXJyYXlb MV0gPSB7dGVzdF92YWx1ZX07Cj4+ICsKPj4gK3N0YXRpYyBfX2Fsd2F5c19pbmxpbmUgdm9pZCB0 cmlnZ2VyX2Z1bmModm9pZCkKPj4gK3sKPj4gKwkvKiBCYXNlIGFkZHJlc3MgKyBvZmZzZXQgKyAo aW5kZXggKiBzY2FsZSkgKi8KPj4gKwlmb3IgKHZvbGF0aWxlIGludCBpID0gMDsgaSA8PSAwOyBp KyspCj4+ICsJCVNUQVBfUFJPQkUxKHRlc3QsIHVzZHQxLCBhcnJheVtpXSk7Cj4+ICt9Cj4+ICsK Pj4gK3N0YXRpYyB2b2lkIGJhc2ljX3NpYl91c2R0KHZvaWQpCj4+ICt7Cj4+ICsJTElCQlBGX09Q VFMoYnBmX3VzZHRfb3B0cywgb3B0cyk7Cj4+ICsJc3RydWN0IHRlc3RfdXNkdF9vMiAqc2tlbDsK Pj4gKwlzdHJ1Y3QgdGVzdF91c2R0X28yX19ic3MgKmJzczsKPj4gKwlpbnQgZXJyOwo+PiArCj4+ ICsJc2tlbCA9IHRlc3RfdXNkdF9vMl9fb3Blbl9hbmRfbG9hZCgpOwo+PiArCWlmICghQVNTRVJU X09LX1BUUihza2VsLCAic2tlbF9vcGVuIikpCj4+ICsJCXJldHVybjsKPj4gKwo+PiArCWJzcyA9 IHNrZWwtPmJzczsKPj4gKwlic3MtPm15X3BpZCA9IGdldHBpZCgpOwo+PiArCj4+ICsJZXJyID0g dGVzdF91c2R0X28yX19hdHRhY2goc2tlbCk7Cj4+ICsJaWYgKCFBU1NFUlRfT0soZXJyLCAic2tl bF9hdHRhY2giKSkKPj4gKwkJZ290byBjbGVhbnVwOwo+PiArCj4+ICsJLyogdXNkdDEgd29uJ3Qg YmUgYXV0by1hdHRhY2hlZCAqLwo+PiArCW9wdHMudXNkdF9jb29raWUgPSAweGNhZmVkZWFkYmVl ZmZlZWQ7Cj4+ICsJc2tlbC0+bGlua3MudXNkdDEgPSBicGZfcHJvZ3JhbV9fYXR0YWNoX3VzZHQo c2tlbC0+cHJvZ3MudXNkdDEsCj4+ICsJCQkJCQkgICAgIDAgLypzZWxmKi8sICIvcHJvYy9zZWxm L2V4ZSIsCj4+ICsJCQkJCQkgICAgICJ0ZXN0IiwgInVzZHQxIiwgJm9wdHMpOwo+PiArCWlmICgh QVNTRVJUX09LX1BUUihza2VsLT5saW5rcy51c2R0MSwgInVzZHQxX2xpbmsiKSkKPj4gKwkJZ290 byBjbGVhbnVwOwo+PiArCj4+ICsJdHJpZ2dlcl9mdW5jKCk7Cj4+ICsKPj4gKwlBU1NFUlRfRVEo YnNzLT51c2R0MV9jYWxsZWQsIDEsICJ1c2R0MV9jYWxsZWQiKTsKPj4gKwlBU1NFUlRfRVEoYnNz LT51c2R0MV9jb29raWUsIDB4Y2FmZWRlYWRiZWVmZmVlZCwgInVzZHQxX2Nvb2tpZSIpOwo+PiAr CUFTU0VSVF9FUShic3MtPnVzZHQxX2FyZ19jbnQsIDEsICJ1c2R0MV9hcmdfY250Iik7Cj4+ICsJ QVNTRVJUX0VRKGJzcy0+dXNkdDFfYXJnLCB0ZXN0X3ZhbHVlLCAidXNkdDFfYXJnIik7Cj4+ICsJ QVNTRVJUX0VRKGJzcy0+dXNkdDFfYXJnX3JldCwgMCwgInVzZHQxX2FyZ19yZXQiKTsKPj4gKwlB U1NFUlRfRVEoYnNzLT51c2R0MV9hcmdfc2l6ZSwgc2l6ZW9mKGFycmF5WzBdKSwgInVzZHQxX2Fy Z19zaXplIik7Cj4+ICsKPj4gK2NsZWFudXA6Cj4+ICsJdGVzdF91c2R0X28yX19kZXN0cm95KHNr ZWwpOwo+PiArfQo+PiArCj4+ICsKPj4gKwo+PiArdm9pZCB0ZXN0X3VzZHRfbzIodm9pZCkKPj4g K3sKPj4gKwliYXNpY19zaWJfdXNkdCgpOwo+PiArfQo+PiBkaWZmIC0tZ2l0IGEvdG9vbHMvdGVz dGluZy9zZWxmdGVzdHMvYnBmL3Byb2dzL3Rlc3RfdXNkdF9vMi5jIGIvdG9vbHMvdGVzdGluZy9z ZWxmdGVzdHMvYnBmL3Byb2dzL3Rlc3RfdXNkdF9vMi5jCj4+IG5ldyBmaWxlIG1vZGUgMTAwNjQ0 Cj4+IGluZGV4IDAwMDAwMDAwMDAwMC4uMTQ2MDJhYTU0NTc4Cj4+IC0tLSAvZGV2L251bGwKPj4g KysrIGIvdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMvYnBmL3Byb2dzL3Rlc3RfdXNkdF9vMi5jCj4+ IEBAIC0wLDAgKzEsMzcgQEAKPj4gKy8vIFNQRFgtTGljZW5zZS1JZGVudGlmaWVyOiBHUEwtMi4w Cj4+ICsvKiBDb3B5cmlnaHQgKGMpIDIwMjIgTWV0YSBQbGF0Zm9ybXMsIEluYy4gYW5kIGFmZmls aWF0ZXMuICovCj4+ICsKPj4gKyNpbmNsdWRlICJ2bWxpbnV4LmgiCj4+ICsjaW5jbHVkZSA8YnBm L2JwZl9oZWxwZXJzLmg+Cj4+ICsjaW5jbHVkZSA8YnBmL3VzZHQuYnBmLmg+Cj4+ICsKPj4gK2lu dCBteV9waWQ7Cj4+ICsKPj4gK2ludCB1c2R0MV9jYWxsZWQ7Cj4+ICt1NjQgdXNkdDFfY29va2ll Owo+PiAraW50IHVzZHQxX2FyZ19jbnQ7Cj4+ICtpbnQgdXNkdDFfYXJnX3JldDsKPj4gK3U2NCB1 c2R0MV9hcmc7Cj4+ICtpbnQgdXNkdDFfYXJnX3NpemU7Cj4+ICsKPj4gK1NFQygidXNkdCIpCj4+ ICtpbnQgdXNkdDEoc3RydWN0IHB0X3JlZ3MgKmN0eCkKPj4gK3sKPj4gKwlsb25nIHRtcDsKPj4g Kwo+PiArCWlmIChteV9waWQgIT0gKGJwZl9nZXRfY3VycmVudF9waWRfdGdpZCgpID4+IDMyKSkK Pj4gKwkJcmV0dXJuIDA7Cj4+ICsKPj4gKwlfX3N5bmNfZmV0Y2hfYW5kX2FkZCgmdXNkdDFfY2Fs bGVkLCAxKTsKPj4gKwo+PiArCXVzZHQxX2Nvb2tpZSA9IGJwZl91c2R0X2Nvb2tpZShjdHgpOwo+ PiArCXVzZHQxX2FyZ19jbnQgPSBicGZfdXNkdF9hcmdfY250KGN0eCk7Cj4+ICsKPj4gKwl1c2R0 MV9hcmdfcmV0ID0gYnBmX3VzZHRfYXJnKGN0eCwgMCwgJnRtcCk7Cj4+ICsJdXNkdDFfYXJnID0g KHU2NCl0bXA7Cj4+ICsJdXNkdDFfYXJnX3NpemUgPSBicGZfdXNkdF9hcmdfc2l6ZShjdHgsIDAp Owo+PiArCj4+ICsJcmV0dXJuIDA7Cj4+ICt9Cj4+ICsKPj4gK2NoYXIgX2xpY2Vuc2VbXSBTRUMo ImxpY2Vuc2UiKSA9ICJHUEwiOwo+PiAtLSAKPj4gMi40My4wCj4+IAo+PiAK