From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85928C2D0C6 for ; Fri, 27 Dec 2019 18:19:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 587DE20722 for ; Fri, 27 Dec 2019 18:19:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577470754; bh=4qsaJPCsqdeGWjUH3Q5NHhiloyBEEgLcVzLHgGTZ9jQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vm7dFcBuOBBsRMDy9fg5LbzWQtoY6BbhTmrSfyzbrODnaInzHDcR+LRTKQC3JsNac 2NdX5dL1dXmiVf+JUr7+lyXXxF0o7cLV37u0oW3gqndyKNtLh028u7WGGNofCuuMni j6luwoCWEVSG2DGZEmIjb7R3UMovSZFXXv49O4u0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727526AbfL0SO4 (ORCPT ); Fri, 27 Dec 2019 13:14:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:39434 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727503AbfL0SOz (ORCPT ); Fri, 27 Dec 2019 13:14:55 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7CC1A20CC7; Fri, 27 Dec 2019 18:14:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577470495; bh=4qsaJPCsqdeGWjUH3Q5NHhiloyBEEgLcVzLHgGTZ9jQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RRI/wfxZeSNv9eL3qnFDDVIvAzjpOBv0W2qGaqXeqBGc5ArhV7JL2g4V1dAZ5tb4d hpAtNXItrX3gIEcD9WJJ3bsA7dplOy/KLMo7REq187va7bF9wI3nAUT8ULFwQ+aplQ X/GLeulqi76wY5W9ccONvGNotZp/jDXCGvFdwhb8= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Daniel T. Lee" , Alexei Starovoitov , Sasha Levin , netdev@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 15/38] samples: bpf: Replace symbol compare of trace_event Date: Fri, 27 Dec 2019 13:14:12 -0500 Message-Id: <20191227181435.7644-15-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191227181435.7644-1-sashal@kernel.org> References: <20191227181435.7644-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org From: "Daniel T. Lee" [ Upstream commit bba1b2a890253528c45aa66cf856f289a215bfbc ] Previously, when this sample is added, commit 1c47910ef8013 ("samples/bpf: add perf_event+bpf example"), a symbol 'sys_read' and 'sys_write' has been used without no prefixes. But currently there are no exact symbols with these under kallsyms and this leads to failure. This commit changes exact compare to substring compare to keep compatible with exact symbol or prefixed symbol. Fixes: 1c47910ef8013 ("samples/bpf: add perf_event+bpf example") Signed-off-by: Daniel T. Lee Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20191205080114.19766-2-danieltimlee@gmail.com Signed-off-by: Sasha Levin --- samples/bpf/trace_event_user.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/samples/bpf/trace_event_user.c b/samples/bpf/trace_event_user.c index 9a130d31ecf2..6fbb5eb9daf3 100644 --- a/samples/bpf/trace_event_user.c +++ b/samples/bpf/trace_event_user.c @@ -33,9 +33,9 @@ static void print_ksym(__u64 addr) return; sym = ksym_search(addr); printf("%s;", sym->name); - if (!strcmp(sym->name, "sys_read")) + if (!strstr(sym->name, "sys_read")) sys_read_seen = true; - else if (!strcmp(sym->name, "sys_write")) + else if (!strstr(sym->name, "sys_write")) sys_write_seen = true; } -- 2.20.1