From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [91.216.245.30]) (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 68A1738AC7E; Tue, 12 May 2026 18:30:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.216.245.30 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778610607; cv=none; b=pSRwfWJd3qP94hudDT2uAeh+Y9awp/6u7IM727XiW0l4UVfJxFAEPc5rQWsi9I9D65lcNVDPETbDEFYAaG7vMufeCorGjxgRhMwPk4zyGuvYOnv9OcoH+9Ce9iuZOTCypL0mwtTVngeOSwBwqKvgzm/lB+b7eRRvr+pqDNzke6E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778610607; c=relaxed/simple; bh=zajSxBKigkT3xJDwQAxK7boZO1bj6b19cCo9nh/rY0E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hzNTDIMzk6cBPsnebInBIwOPfGCMc6mvjH3yKuM3RDNjItSZM5jOTQzA7IYTNJhEgKE6XHDqyQTO1+KcLcpuaXvBE2ityxB9WiYtbSYLfgYNHwaMNdkNtpvk3u4NiIm+OAC2t53pxUSWvUg51GTVslStJ/jifLULdJF05DLGYjM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de; spf=pass smtp.mailfrom=Chamillionaire.breakpoint.cc; arc=none smtp.client-ip=91.216.245.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=Chamillionaire.breakpoint.cc Received: by Chamillionaire.breakpoint.cc (Postfix, from userid 1003) id D6C1660D66; Tue, 12 May 2026 20:29:58 +0200 (CEST) From: Florian Westphal To: Cc: lvs-devel@vger.kernel.org, ja@ssi.bg, Florian Westphal Subject: [PATCH nf-next v2] netfilter: add option for GCOV profiling Date: Tue, 12 May 2026 20:29:46 +0200 Message-ID: <20260512182946.32687-1-fw@strlen.de> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: lvs-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Similar to a few other subsystems: add a new config toggle to enable netfilter gcov profiling in netfilter, including ebtables, arptables and so on. ipset and ipvs gain their own, dedicated toggles. Signed-off-by: Florian Westphal --- v2: add dedicated toggles for ipvs and ipset; I am currently not collecting profile data for these two. If you prefer to keep them under single switch thats fine, just lmk. net/bridge/netfilter/Makefile | 4 ++++ net/ipv4/netfilter/Makefile | 4 ++++ net/ipv6/netfilter/Makefile | 4 ++++ net/netfilter/Kconfig | 8 ++++++++ net/netfilter/Makefile | 4 ++++ net/netfilter/ipset/Kconfig | 9 +++++++++ net/netfilter/ipset/Makefile | 3 +++ net/netfilter/ipvs/Kconfig | 9 +++++++++ net/netfilter/ipvs/Makefile | 3 +++ 9 files changed, 48 insertions(+) diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile index b9a1303da977..af0c903aa4ac 100644 --- a/net/bridge/netfilter/Makefile +++ b/net/bridge/netfilter/Makefile @@ -38,3 +38,7 @@ obj-$(CONFIG_BRIDGE_EBT_SNAT) += ebt_snat.o # watchers obj-$(CONFIG_BRIDGE_EBT_LOG) += ebt_log.o obj-$(CONFIG_BRIDGE_EBT_NFLOG) += ebt_nflog.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 85502d4dfbb4..dbfb1c4739a8 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -51,3 +51,7 @@ obj-$(CONFIG_IP_NF_ARP_MANGLE) += arpt_mangle.o obj-$(CONFIG_IP_NF_ARPFILTER) += arptable_filter.o obj-$(CONFIG_NF_DUP_IPV4) += nf_dup_ipv4.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile index 66ce6fa5b2f5..72902d8005ad 100644 --- a/net/ipv6/netfilter/Makefile +++ b/net/ipv6/netfilter/Makefile @@ -43,3 +43,7 @@ obj-$(CONFIG_IP6_NF_MATCH_SRH) += ip6t_srh.o obj-$(CONFIG_IP6_NF_TARGET_NPT) += ip6t_NPT.o obj-$(CONFIG_IP6_NF_TARGET_REJECT) += ip6t_REJECT.o obj-$(CONFIG_IP6_NF_TARGET_SYNPROXY) += ip6t_SYNPROXY.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 682c675125fc..f71ff98eb5d0 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -1648,6 +1648,14 @@ config NETFILTER_XT_MATCH_U32 endif # NETFILTER_XTABLES +config GCOV_PROFILE_NETFILTER + bool "Enable GCOV profiling for netfilter" + depends on GCOV_KERNEL + help + Enable GCOV profiling for netfilter to check which functions/lines + are executed. + + If unsure, say N. endmenu source "net/netfilter/ipset/Kconfig" diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile index 6bfc250e474f..f0751ca302c6 100644 --- a/net/netfilter/Makefile +++ b/net/netfilter/Makefile @@ -240,3 +240,7 @@ obj-$(CONFIG_IP_VS) += ipvs/ # lwtunnel obj-$(CONFIG_LWTUNNEL) += nf_hooks_lwtunnel.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/netfilter/ipset/Kconfig b/net/netfilter/ipset/Kconfig index b1ea054bb82c..6c4d54758106 100644 --- a/net/netfilter/ipset/Kconfig +++ b/net/netfilter/ipset/Kconfig @@ -175,4 +175,13 @@ config IP_SET_LIST_SET To compile it as a module, choose M here. If unsure, say N. +config GCOV_PROFILE_IPSET + bool "Enable GCOV profiling for ipset" + depends on GCOV_KERNEL + help + Enable GCOV profiling for ipset to check which functions/lines + are executed. + + If unsure, say N. + endif # IP_SET diff --git a/net/netfilter/ipset/Makefile b/net/netfilter/ipset/Makefile index a445a6bf4f11..4f48df5406cd 100644 --- a/net/netfilter/ipset/Makefile +++ b/net/netfilter/ipset/Makefile @@ -29,3 +29,6 @@ obj-$(CONFIG_IP_SET_HASH_NETPORTNET) += ip_set_hash_netportnet.o # list types obj-$(CONFIG_IP_SET_LIST_SET) += ip_set_list_set.o +ifdef CONFIG_GCOV_PROFILE_IPSET +GCOV_PROFILE := y +endif diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig index c203252e856d..7724cb44e6de 100644 --- a/net/netfilter/ipvs/Kconfig +++ b/net/netfilter/ipvs/Kconfig @@ -349,4 +349,13 @@ config IP_VS_PE_SIP help Allow persistence based on the SIP Call-ID +config GCOV_PROFILE_IPVS + bool "Enable GCOV profiling for IPVS" + depends on GCOV_KERNEL + help + Enable GCOV profiling for IPVS to check which functions/lines + are executed. + + If unsure, say N. + endif # IP_VS diff --git a/net/netfilter/ipvs/Makefile b/net/netfilter/ipvs/Makefile index bb5d8125c82a..8e4cc67ad39d 100644 --- a/net/netfilter/ipvs/Makefile +++ b/net/netfilter/ipvs/Makefile @@ -43,3 +43,6 @@ obj-$(CONFIG_IP_VS_FTP) += ip_vs_ftp.o # IPVS connection template retrievers obj-$(CONFIG_IP_VS_PE_SIP) += ip_vs_pe_sip.o +ifdef CONFIG_GCOV_PROFILE_IPVS +GCOV_PROFILE := y +endif -- 2.53.0