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Konstantin Khorenko 29b1ee8788 net: add noinline __init __no_profile to skb_extensions_init() for GCOV compatibility 
With -fprofile-update=atomic in global CFLAGS_GCOV, GCC still cannot
constant-fold the skb_ext_total_length() loop when it is inlined into a
profiled caller.  The existing __no_profile on skb_ext_total_length()
itself is insufficient because after __always_inline expansion the code
resides in the caller's body, which still carries GCOV instrumentation.

Mark skb_extensions_init() with __no_profile so the BUILD_BUG_ON checks
can be evaluated at compile time.  Also mark it noinline to prevent the
compiler from inlining it into skb_init() (which lacks __no_profile),
which would re-expose the function body to GCOV instrumentation.

Add __init since skb_extensions_init() is only called from __init
skb_init().  Previously it was implicitly inlined into the .init.text
section; with noinline it would otherwise remain in permanent .text,
wasting memory after boot.

Build-tested with both CONFIG_GCOV_PROFILE_ALL=y and
CONFIG_KCOV_INSTRUMENT_ALL=y.

Signed-off-by: Konstantin Khorenko <khorenko@virtuozzo.com>
Link: https://patch.msgid.link/20260410162150.3105738-3-khorenko@virtuozzo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2026-04-12 15:29:02 -07:00
..
6lowpan
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9p Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
802 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
8021q Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
appletalk Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-03-19 14:16:00 -07:00
ax25 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
batman-adv Here are two batman-adv bugfixes: 2026-04-08 18:50:27 -07:00
bluetooth Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync 2026-04-01 16:48:28 -04:00
bpf Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
bridge net: bridge: add stp_mode attribute for STP mode selection 2026-04-10 15:52:24 -07:00
caif Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
can net: change sock_queue_rcv_skb_reason() to return a drop_reason 2026-04-12 14:30:25 -07:00
ceph libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply() 2026-03-11 10:18:56 +01:00
core net: add noinline __init __no_profile to skb_extensions_init() for GCOV compatibility 2026-04-12 15:29:02 -07:00
dcb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
devlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
dns_resolver net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
dsa net: dsa: tag_rtl8_4: set KEEP flag 2026-04-12 09:03:55 -07:00
ethernet bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
ethtool ethtool: strset: check nla_len overflow 2026-04-12 11:23:50 -07:00
handshake treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
hsr net: hsr: emit notification for PRP slave2 changed hw addr on port deletion 2026-04-07 17:06:16 +02:00
ieee802154 net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
ife
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ipv4 Merge branch 'net-reduce-sk_filter-and-friends-bloat' 2026-04-12 14:30:28 -07:00
ipv6 Merge branch 'net-reduce-sk_filter-and-friends-bloat' 2026-04-12 14:30:28 -07:00
iucv net/iucv: Add missing kernel-doc return value descriptions 2026-03-31 20:14:56 -07:00
kcm kcm: fix zero-frag skb in frag_list on partial sendmsg error 2026-02-23 17:26:55 -08:00
key net: af_key: zero aligned sockaddr tail in PF_KEY exports 2026-04-07 11:08:24 +02:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
l3mdev
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lapb treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
llc treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
mac80211 Final updates, notably: 2026-04-12 09:17:42 -07:00
mac802154 bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
mctp net: mctp: defer creation of dst after source-address check 2026-04-06 18:06:47 -07:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
mptcp net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
ncsi net: ncsi: fix skb leak in error paths 2026-03-06 17:34:48 -08:00
netfilter netfilter: require Ethernet MAC header before using eth_hdr() 2026-04-10 12:16:27 +02:00
netlabel Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
netlink netlink: update outdated comment 2026-03-12 19:29:01 -07:00
netrom Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
nfc nfc: nci: fix circular locking dependency in nci_close_device 2026-03-19 16:56:18 -07:00
nsh
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openvswitch net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
packet net: fix fanout UAF in packet_release() via NETDEV_UP race 2026-03-23 17:07:19 -07:00
phonet Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-03-19 14:16:00 -07:00
psample treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
psp net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros 2026-03-29 11:21:22 -07:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
rfkill net: rfkill: prevent unlimited numbers of rfkill events from being created 2026-04-07 12:35:04 +02:00
rose net: change sk_filter_trim_cap() to return a drop_reason by value 2026-04-12 14:30:25 -07:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
sctp net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
shaper net: shaper: protect from late creation of hierarchy 2026-03-19 13:47:15 +01:00
smc net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer 2026-03-20 18:59:30 -07:00
strparser
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sunrpc nfsd-7.0 fixes: 2026-03-18 14:27:11 -07:00
switchdev bridge: No DEV_PATH_BR_VLAN_UNTAG_HW for dsa foreign 2026-03-19 13:14:00 +01:00
tipc net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
vmw_vsock vsock/virtio: remove unnecessary call to `virtio_transport_get_ops` 2026-04-12 09:57:01 -07:00
wireless wifi: cfg80211: Explicitly include <linux/export.h> in michael-mic.c 2026-04-09 08:54:43 +02:00
x25 net/x25: Fix overflow when accumulating packets 2026-04-02 13:36:08 +02:00
xdp net: remove the netif_get_rx_queue_lease_locked() helpers 2026-04-09 18:26:28 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
Kconfig
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Kconfig.debug
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Makefile
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compat.c
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devres.c
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socket.c net: Convert move_addr_to_user() to scoped user access 2026-03-11 20:38:00 -07:00
sysctl_net.c
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