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- From 809d9d8172db8e2a08ff639875f838b5b86d2641 Mon Sep 17 00:00:00 2001
- From: Sergey Matyukevich <geomatsi@gmail.com>
- Date: Thu, 22 Aug 2024 00:03:41 +0300
- Subject: [PATCH] macsec_linux: Hardware offload requires Linux headers >= v5.7
- Hardware offload in Linux macsec driver is enabled in compile time if
- libnl version is >= v3.6. This is not sufficient for successful build
- since enum 'macsec_offload' has been added to Linux header if_link.h
- in kernels v5.6 and v5.7, see commits:
- - https://github.com/torvalds/linux/commit/21114b7feec29e4425a3ac48a037569c016a46c8
- - https://github.com/torvalds/linux/commit/76564261a7db80c5f5c624e0122a28787f266bdf
- New libnl with older Linux headers is a valid combination. This is how
- hostapd build failure has been detected by Buildroot autobuilder, see:
- - http://autobuild.buildroot.net/results/b59d5bc5bd17683a3a1e3577c40c802e81911f84/
- Extend compile time condition for the enablement of the macsec hardware
- offload adding Linux headers version check.
- Fixes: 40c139664439 ("macsec_linux: Add support for MACsec hardware offload")
- Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
- Upstream: https://w1.fi/cgit/hostap/commit/?id=809d9d8172db8e2a08ff639875f838b5b86d2641
- ---
- src/drivers/driver_macsec_linux.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
- diff --git a/src/drivers/driver_macsec_linux.c b/src/drivers/driver_macsec_linux.c
- index c86715498..fad47a292 100644
- --- a/src/drivers/driver_macsec_linux.c
- +++ b/src/drivers/driver_macsec_linux.c
- @@ -19,6 +19,7 @@
- #include <netlink/route/link.h>
- #include <netlink/route/link/macsec.h>
- #include <linux/if_macsec.h>
- +#include <linux/version.h>
- #include <inttypes.h>
-
- #include "utils/common.h"
- @@ -32,7 +33,8 @@
-
- #define UNUSED_SCI 0xffffffffffffffff
-
- -#if LIBNL_VER_NUM >= LIBNL_VER(3, 6)
- +#if (LIBNL_VER_NUM >= LIBNL_VER(3, 6) && \
- + LINUX_VERSION_CODE >= KERNEL_VERSION(5, 7, 0))
- #define LIBNL_HAS_OFFLOAD
- #endif
-
- --
- 2.46.0
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