[PATCH net-next] tools: ynl: add missing header deps

[PATCH net-next] tools: ynl: add missing header deps

[Jakub Kicinski]

Various new families and my recent work on rtnetlink missed
adding dependencies on C headers. If the system headers are
up to date or don't include a given header at all this doesn't
make a difference. But if the system headers are in place but
stale - compilation will break.

Reported-by: Kory Maincent <kory.maincent@bootlin.com>
Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: donald.hunter@gmail.com
CC: jacob.e.keller@intel.com
---
 tools/net/ynl/Makefile.deps | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps
index 385783489f84..8b7bf673b686 100644
--- a/tools/net/ynl/Makefile.deps
+++ b/tools/net/ynl/Makefile.deps
@@ -20,15 +20,18 @@ CFLAGS_ethtool:=$(call get_hdr_inc,_LINUX_ETHTOOL_H,ethtool.h) \
 	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_H_,ethtool_netlink.h) \
 	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_GENERATED_H,ethtool_netlink_generated.h)
 CFLAGS_handshake:=$(call get_hdr_inc,_LINUX_HANDSHAKE_H,handshake.h)
+CFLAGS_lockd_netlink:=$(call get_hdr_inc,_LINUX_LOCKD_NETLINK_H,lockd_netlink.h)
 CFLAGS_mptcp_pm:=$(call get_hdr_inc,_LINUX_MPTCP_PM_H,mptcp_pm.h)
 CFLAGS_net_shaper:=$(call get_hdr_inc,_LINUX_NET_SHAPER_H,net_shaper.h)
 CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
 CFLAGS_nl80211:=$(call get_hdr_inc,__LINUX_NL802121_H,nl80211.h)
 CFLAGS_nlctrl:=$(call get_hdr_inc,__LINUX_GENERIC_NETLINK_H,genetlink.h)
 CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)
+CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN,ovpn.h)
 CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
 CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
 CFLAGS_ovs_vport:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
-CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
+CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h) \
+	$(call get_hdr_inc,__LINUX_IF_ADDR_H,if_addr.h)
 CFLAGS_rt-route:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
 CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h)
-- 
2.49.0

Re: [PATCH net-next] tools: ynl: add missing header deps

[Stanislav Fomichev]

On 04/18, Jakub Kicinski wrote:
> Various new families and my recent work on rtnetlink missed
> adding dependencies on C headers. If the system headers are
> up to date or don't include a given header at all this doesn't
> make a difference. But if the system headers are in place but
> stale - compilation will break.
> 
> Reported-by: Kory Maincent <kory.maincent@bootlin.com>
> Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
> Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> ---
> CC: donald.hunter@gmail.com
> CC: jacob.e.keller@intel.com
> ---
>  tools/net/ynl/Makefile.deps | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps
> index 385783489f84..8b7bf673b686 100644
> --- a/tools/net/ynl/Makefile.deps
> +++ b/tools/net/ynl/Makefile.deps
> @@ -20,15 +20,18 @@ CFLAGS_ethtool:=$(call get_hdr_inc,_LINUX_ETHTOOL_H,ethtool.h) \
>  	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_H_,ethtool_netlink.h) \
>  	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_GENERATED_H,ethtool_netlink_generated.h)
>  CFLAGS_handshake:=$(call get_hdr_inc,_LINUX_HANDSHAKE_H,handshake.h)
> +CFLAGS_lockd_netlink:=$(call get_hdr_inc,_LINUX_LOCKD_NETLINK_H,lockd_netlink.h)
>  CFLAGS_mptcp_pm:=$(call get_hdr_inc,_LINUX_MPTCP_PM_H,mptcp_pm.h)
>  CFLAGS_net_shaper:=$(call get_hdr_inc,_LINUX_NET_SHAPER_H,net_shaper.h)
>  CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
>  CFLAGS_nl80211:=$(call get_hdr_inc,__LINUX_NL802121_H,nl80211.h)
>  CFLAGS_nlctrl:=$(call get_hdr_inc,__LINUX_GENERIC_NETLINK_H,genetlink.h)
>  CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)
> +CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN,ovpn.h)
>  CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_vport:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
> -CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
> +CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h) \
> +	$(call get_hdr_inc,__LINUX_IF_ADDR_H,if_addr.h)
>  CFLAGS_rt-route:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
>  CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h)

Acked-by: Stanislav Fomichev <sdf@fomichev.me>

(mostly checked that XXX_H defines listed here match the ones in the
header files)

Re: [PATCH net-next] tools: ynl: add missing header deps

[Kory Maincent]

On Fri, 18 Apr 2025 16:49:42 -0700
Jakub Kicinski <kuba@kernel.org> wrote:

> Various new families and my recent work on rtnetlink missed
> adding dependencies on C headers. If the system headers are
> up to date or don't include a given header at all this doesn't
> make a difference. But if the system headers are in place but
> stale - compilation will break.
> 
> Reported-by: Kory Maincent <kory.maincent@bootlin.com>
> Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
> Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Tested-by: Kory Maincent <kory.maincent@bootlin.com>

Thank you!
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

RE: [PATCH net-next] tools: ynl: add missing header deps

[Keller, Jacob E]

> -----Original Message-----
> From: Jakub Kicinski <kuba@kernel.org>
> Sent: Friday, April 18, 2025 4:50 PM
> To: davem@davemloft.net
> Cc: netdev@vger.kernel.org; Dumazet, Eric <edumazet@google.com>;
> pabeni@redhat.com; andrew+netdev@lunn.ch; horms@kernel.org; Jakub
> Kicinski <kuba@kernel.org>; Kory Maincent <kory.maincent@bootlin.com>;
> donald.hunter@gmail.com; Keller, Jacob E <jacob.e.keller@intel.com>
> Subject: [PATCH net-next] tools: ynl: add missing header deps
> 
> Various new families and my recent work on rtnetlink missed
> adding dependencies on C headers. If the system headers are
> up to date or don't include a given header at all this doesn't
> make a difference. But if the system headers are in place but
> stale - compilation will break.
> 
> Reported-by: Kory Maincent <kory.maincent@bootlin.com>
> Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
> Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> ---
> CC: donald.hunter@gmail.com
> CC: jacob.e.keller@intel.com
> ---

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>

>  tools/net/ynl/Makefile.deps | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps
> index 385783489f84..8b7bf673b686 100644
> --- a/tools/net/ynl/Makefile.deps
> +++ b/tools/net/ynl/Makefile.deps
> @@ -20,15 +20,18 @@ CFLAGS_ethtool:=$(call
> get_hdr_inc,_LINUX_ETHTOOL_H,ethtool.h) \
>  	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_H_,ethtool_netlink.h) \
>  	$(call
> get_hdr_inc,_LINUX_ETHTOOL_NETLINK_GENERATED_H,ethtool_netlink_generate
> d.h)
>  CFLAGS_handshake:=$(call get_hdr_inc,_LINUX_HANDSHAKE_H,handshake.h)
> +CFLAGS_lockd_netlink:=$(call
> get_hdr_inc,_LINUX_LOCKD_NETLINK_H,lockd_netlink.h)
>  CFLAGS_mptcp_pm:=$(call get_hdr_inc,_LINUX_MPTCP_PM_H,mptcp_pm.h)
>  CFLAGS_net_shaper:=$(call get_hdr_inc,_LINUX_NET_SHAPER_H,net_shaper.h)
>  CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
>  CFLAGS_nl80211:=$(call get_hdr_inc,__LINUX_NL802121_H,nl80211.h)
>  CFLAGS_nlctrl:=$(call get_hdr_inc,__LINUX_GENERIC_NETLINK_H,genetlink.h)
>  CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)
> +CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN,ovpn.h)
>  CFLAGS_ovs_datapath:=$(call
> get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_vport:=$(call
> get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
> -CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
> +CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h) \
> +	$(call get_hdr_inc,__LINUX_IF_ADDR_H,if_addr.h)
>  CFLAGS_rt-route:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
>  CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h)
> --
> 2.49.0

Re: [PATCH net-next] tools: ynl: add missing header deps

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Fri, 18 Apr 2025 16:49:42 -0700 you wrote:
> Various new families and my recent work on rtnetlink missed
> adding dependencies on C headers. If the system headers are
> up to date or don't include a given header at all this doesn't
> make a difference. But if the system headers are in place but
> stale - compilation will break.
> 
> Reported-by: Kory Maincent <kory.maincent@bootlin.com>
> Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
> Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> 
> [...]

Here is the summary with links:
  - [net-next] tools: ynl: add missing header deps
    https://git.kernel.org/netdev/net-next/c/12b196568a3a

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

Re: [PATCH net-next] tools: ynl: add missing header deps

[Thorsten Leemhuis]

On 19.04.25 01:49, Jakub Kicinski wrote:
> Various new families and my recent work on rtnetlink missed
> adding dependencies on C headers. If the system headers are
> up to date or don't include a given header at all this doesn't
> make a difference. But if the system headers are in place but
> stale - compilation will break.
> 
> Reported-by: Kory Maincent <kory.maincent@bootlin.com>
> Fixes: 29d34a4d785b ("tools: ynl: generate code for rt-addr and add a sample")
> Link: https://lore.kernel.org/20250418190431.69c10431@kmaincent-XPS-13-7390
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> ---

Lo! I ran into a ynl build error today and I wonder if I'm doing
something wrong or if something is wrong with this or an related patch
that recently landed in -next.

I'm building -next rpms daily for Fedora using a .spec file that is
pretty close to the one Fedora uses. Everything worked fine yesterday,
when this patch showed up in -next. Today's build failed like this:

"""
+ pushd tools/net/ynl
~/build/BUILD/kernel-next-20250423/linux-6.15.0-0.0.next.20250423.130.vanilla.fc40.x86_64/tools/net/ynl ~/build/BUILD/kernel-next-20250423/linux-6.15.0-0.0.next.20250423.130.vanilla.fc40.x86_64
+ export PIP_CONFIG_FILE=/tmp/pip.config
+ PIP_CONFIG_FILE=/tmp/pip.config
+ cat
+ CFLAGS='-O2  -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection  '
+ LDFLAGS='-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes '
+ EXTRA_CFLAGS='-O2  -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection  '
+ /usr/bin/make -s 'HOSTCFLAGS=-O2  -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection   ' 'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes ' -s -j32 DESTDIR=/builddir/build/BUILDROOT/kernel-6.15.0-0.0.next.20250423.130.vanilla.fc40.x86_64 install
	GEN devlink-user.c
[...]
	CC ethtool-user.o
In file included from ovpn-user.h:12,
                 from ovpn-user.c:8:
/usr/include/linux/ovpn.h:14:6: error: redeclaration of ‘enum ovpn_cipher_alg’
   14 | enum ovpn_cipher_alg {
      |      ^~~~~~~~~~~~~~~
In file included from <command-line>:
./../../../../include/uapi//linux/ovpn.h:14:6: note: originally defined here
   14 | enum ovpn_cipher_alg {
      |      ^~~~~~~~~~~~~~~
/usr/include/linux/ovpn.h:15:9: error: redeclaration of enumerator ‘OVPN_CIPHER_ALG_NONE’
   15 |         OVPN_CIPHER_ALG_NONE,
      |         ^~~~~~~~~~~~~~~~~~~~
./../../../../include/uapi//linux/ovpn.h:15:9: note: previous definition of ‘OVPN_CIPHER_ALG_NONE’ with type ‘enum ovpn_cipher_alg’
   15 |         OVPN_CIPHER_ALG_NONE,
      |         ^~~~~~~~~~~~~~~~~~~~
/usr/include/linux/ovpn.h:16:9: error: redeclaration of enumerator ‘OVPN_CIPHER_ALG_AES_GCM’
   16 |         OVPN_CIPHER_ALG_AES_GCM,
      |         ^~~~~~~~~~~~~~~~~~~~~~~
./../../../../include/uapi//linux/ovpn.h:16:9: note: previous definition of ‘OVPN_CIPHER_ALG_AES_GCM’ with type ‘enum ovpn_cipher_alg’
   16 |         OVPN_CIPHER_ALG_AES_GCM,
      |         ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/linux/ovpn.h:17:9: error: redeclaration of enumerator ‘OVPN_CIPHER_ALG_CHACHA20_POLY1305’
   17 |         OVPN_CIPHER_ALG_CHACHA20_POLY1305,
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./../../../../include/uapi//linux/ovpn.h:17:9: note: previous definition of ‘OVPN_CIPHER_ALG_CHACHA20_POLY1305’ with type ‘enum ovpn_cipher_alg’
   17 |         OVPN_CIPHER_ALG_CHACHA20_POLY1305,
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[...]
"""

Full log (with a lot more similar errors):
https://download.copr.fedorainfracloud.org/results/@kernel-vanilla/next/fedora-40-x86_64/08955038-next-next-all/builder-live.log.gz

I wondered why this started to happen today instead of yesterday --
and it turns out that's because the build approach I use installed the
kernel-headers package (the one that contains the files that end up in 
/usr/include/ ) from yesterday -next build. So I guess the same problem
could happen to other people as well once they install new enough 
headers; at the same time I wonder if the kernel.spec file from Fedora
is doing something wrong/stupid that causes this problem to happen.

Does anyone know why this problem occurs? If not I guess I have to
investigate myself, but I thought it was worth asking here first.

Ciao, Thorsten


>  tools/net/ynl/Makefile.deps | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps
> index 385783489f84..8b7bf673b686 100644
> --- a/tools/net/ynl/Makefile.deps
> +++ b/tools/net/ynl/Makefile.deps
> @@ -20,15 +20,18 @@ CFLAGS_ethtool:=$(call get_hdr_inc,_LINUX_ETHTOOL_H,ethtool.h) \
>  	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_H_,ethtool_netlink.h) \
>  	$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_GENERATED_H,ethtool_netlink_generated.h)
>  CFLAGS_handshake:=$(call get_hdr_inc,_LINUX_HANDSHAKE_H,handshake.h)
> +CFLAGS_lockd_netlink:=$(call get_hdr_inc,_LINUX_LOCKD_NETLINK_H,lockd_netlink.h)
>  CFLAGS_mptcp_pm:=$(call get_hdr_inc,_LINUX_MPTCP_PM_H,mptcp_pm.h)
>  CFLAGS_net_shaper:=$(call get_hdr_inc,_LINUX_NET_SHAPER_H,net_shaper.h)
>  CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
>  CFLAGS_nl80211:=$(call get_hdr_inc,__LINUX_NL802121_H,nl80211.h)
>  CFLAGS_nlctrl:=$(call get_hdr_inc,__LINUX_GENERIC_NETLINK_H,genetlink.h)
>  CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)
> +CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN,ovpn.h)
>  CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
>  CFLAGS_ovs_vport:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
> -CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
> +CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h) \
> +	$(call get_hdr_inc,__LINUX_IF_ADDR_H,if_addr.h)
>  CFLAGS_rt-route:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
>  CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h)

Re: [PATCH net-next] tools: ynl: add missing header deps

[Jakub Kicinski]

On Wed, 23 Apr 2025 15:28:07 +0200 Thorsten Leemhuis wrote:
> Does anyone know why this problem occurs? 

I typo'ed the inclusion guard :( Will send this shortly:

diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps
index 8b7bf673b686..a5e6093903fb 100644
--- a/tools/net/ynl/Makefile.deps
+++ b/tools/net/ynl/Makefile.deps
@@ -27,7 +27,7 @@ CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
 CFLAGS_nl80211:=$(call get_hdr_inc,__LINUX_NL802121_H,nl80211.h)
 CFLAGS_nlctrl:=$(call get_hdr_inc,__LINUX_GENERIC_NETLINK_H,genetlink.h)
 CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)
-CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN,ovpn.h)
+CFLAGS_ovpn:=$(call get_hdr_inc,_LINUX_OVPN_H,ovpn.h)
 CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
 CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)