| Message ID | 20211019163606.1385399-2-kuba@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 08bb7516e53038a9f6609f621024b047de4c2d3e |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [1/2] mac802154: use dev_addr_set() | expand |
| Context | Check | Description |
|---|---|---|
| netdev/cover_letter | success | Single patches do not need cover letters |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/patch_count | success | Link |
| netdev/tree_selection | success | Guessed tree name to be net-next |
| netdev/subject_prefix | warning | Target tree name not specified in the subject |
| netdev/cc_maintainers | warning | 1 maintainers not CCed: davem@davemloft.net |
| netdev/source_inline | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 41 lines checked |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/header_inline | success | No static functions without inline keyword in header files |
Hello. On 19.10.21 18:36, Jakub Kicinski wrote: > Commit 406f42fa0d3c ("net-next: When a bond have a massive amount > of VLANs...") introduced a rbtree for faster Ethernet address look > up. To maintain netdev->dev_addr in this tree we need to make all > the writes to it got through appropriate helpers. > > Signed-off-by: Jakub Kicinski <kuba@kernel.org> Tested on my local ieee802154 setup without showing problems. Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> regards Stefan Schmidt
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c index 3297e7fa9945..2cf62718a282 100644 --- a/net/ieee802154/6lowpan/core.c +++ b/net/ieee802154/6lowpan/core.c @@ -157,7 +157,7 @@ static int lowpan_newlink(struct net *src_net, struct net_device *ldev, lowpan_802154_dev(ldev)->wdev = wdev; /* Set the lowpan hardware address to the wpan hardware address. */ - memcpy(ldev->dev_addr, wdev->dev_addr, IEEE802154_ADDR_LEN); + __dev_addr_set(ldev, wdev->dev_addr, IEEE802154_ADDR_LEN); /* We need headroom for possible wpan_dev_hard_header call and tailroom * for encryption/fcs handling. The lowpan interface will replace * the IPv6 header with 6LoWPAN header. At worst case the 6LoWPAN diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c index 3210dec64a6a..500ed1b81250 100644 --- a/net/mac802154/iface.c +++ b/net/mac802154/iface.c @@ -136,8 +136,7 @@ static int mac802154_wpan_mac_addr(struct net_device *dev, void *p) * wpan mac has been changed */ if (sdata->wpan_dev.lowpan_dev) - memcpy(sdata->wpan_dev.lowpan_dev->dev_addr, dev->dev_addr, - dev->addr_len); + dev_addr_set(sdata->wpan_dev.lowpan_dev, dev->dev_addr); return mac802154_wpan_update_llsec(dev); } @@ -615,6 +614,7 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name, unsigned char name_assign_type, enum nl802154_iftype type, __le64 extended_addr) { + u8 addr[IEEE802154_EXTENDED_ADDR_LEN]; struct net_device *ndev = NULL; struct ieee802154_sub_if_data *sdata = NULL; int ret; @@ -638,11 +638,12 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name, switch (type) { case NL802154_IFTYPE_NODE: ndev->type = ARPHRD_IEEE802154; - if (ieee802154_is_valid_extended_unicast_addr(extended_addr)) - ieee802154_le64_to_be64(ndev->dev_addr, &extended_addr); - else - memcpy(ndev->dev_addr, ndev->perm_addr, - IEEE802154_EXTENDED_ADDR_LEN); + if (ieee802154_is_valid_extended_unicast_addr(extended_addr)) { + ieee802154_le64_to_be64(addr, &extended_addr); + dev_addr_set(ndev, addr); + } else { + dev_addr_set(ndev, ndev->perm_addr); + } break; case NL802154_IFTYPE_MONITOR: ndev->type = ARPHRD_IEEE802154_MONITOR;
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> --- CC: alex.aring@gmail.com CC: stefan@datenfreihafen.org CC: linux-wpan@vger.kernel.org --- net/ieee802154/6lowpan/core.c | 2 +- net/mac802154/iface.c | 15 ++++++++------- 2 files changed, 9 insertions(+), 8 deletions(-)