The warning info: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type
Variable dev_addr is done const intentionally in v5.17 to prevent using it directly. See kernel series [1] for more information. [1] https://lore.kernel.org/netdev/YZYAb4X%2FVQFy0iks@shredder/T/ Fixes: ea6b39b5b847 ("kni: remove ethtool support") Cc: sta...@dpdk.org Signed-off-by: Ke Zhang <ke1x.zh...@intel.com> Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru> --- kernel/linux/kni/compat.h | 4 ++++ kernel/linux/kni/kni_misc.c | 6 +++++- kernel/linux/kni/kni_net.c | 5 ++++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/kernel/linux/kni/compat.h b/kernel/linux/kni/compat.h index 664785674f..ef1526ef85 100644 --- a/kernel/linux/kni/compat.h +++ b/kernel/linux/kni/compat.h @@ -141,3 +141,7 @@ #if KERNEL_VERSION(5, 9, 0) > LINUX_VERSION_CODE #define HAVE_TSK_IN_GUP #endif + +#if KERNEL_VERSION(5, 15, 0) <= LINUX_VERSION_CODE +#define HAVE_ETH_HW_ADDR_SET +#endif diff --git a/kernel/linux/kni/kni_misc.c b/kernel/linux/kni/kni_misc.c index 780187d8bf..11fea961b3 100644 --- a/kernel/linux/kni/kni_misc.c +++ b/kernel/linux/kni/kni_misc.c @@ -403,10 +403,14 @@ kni_ioctl_create(struct net *net, uint32_t ioctl_num, /* if user has provided a valid mac address */ if (is_valid_ether_addr(dev_info.mac_addr)) +#ifdef HAVE_ETH_HW_ADDR_SET + eth_hw_addr_set(net_dev, dev_info.mac_addr); +#else memcpy(net_dev->dev_addr, dev_info.mac_addr, ETH_ALEN); +#endif else /* Generate random MAC address. */ - eth_random_addr(net_dev->dev_addr); + eth_hw_addr_random(net_dev); if (dev_info.mtu) net_dev->mtu = dev_info.mtu; diff --git a/kernel/linux/kni/kni_net.c b/kernel/linux/kni/kni_net.c index 29e5b9e21f..496ce7e4ae 100644 --- a/kernel/linux/kni/kni_net.c +++ b/kernel/linux/kni/kni_net.c @@ -779,8 +779,11 @@ kni_net_set_mac(struct net_device *netdev, void *p) return -EADDRNOTAVAIL; memcpy(req.mac_addr, addr->sa_data, netdev->addr_len); +#ifdef HAVE_ETH_HW_ADDR_SET + eth_hw_addr_set(netdev, addr->sa_data); +#else memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - +#endif ret = kni_net_process_request(netdev, &req); return (ret == 0 ? req.result : ret); -- 2.25.1
