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netconsole: allow selection of egress interface via MAC address

From:  Uday Shankar <ushankar-AT-purestorage.com>
To:  Breno Leitao <leitao-AT-debian.org>, Andrew Lunn <andrew+netdev-AT-lunn.ch>, "David S. Miller" <davem-AT-davemloft.net>, Eric Dumazet <edumazet-AT-google.com>, Jakub Kicinski <kuba-AT-kernel.org>, Paolo Abeni <pabeni-AT-redhat.com>, Srinivas Kandagatla <srinivas.kandagatla-AT-linaro.org>, Rafał Miłecki <rafal-AT-milecki.pl>, Simon Horman <horms-AT-kernel.org>, Andrew Morton <akpm-AT-linux-foundation.org>, Johannes Berg <johannes-AT-sipsolutions.net>, Jonathan Corbet <corbet-AT-lwn.net>
Subject:  [PATCH net-next v6 0/2] netconsole: allow selection of egress interface via MAC address
Date:  Wed, 12 Mar 2025 13:51:45 -0600
Message-ID:  <20250312-netconsole-v6-0-3437933e79b8@purestorage.com>
Cc:  netdev-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, linux-wireless-AT-vger.kernel.org, linux-doc-AT-vger.kernel.org, Uday Shankar <ushankar-AT-purestorage.com>, Michal Swiatkowski <michal.swiatkowski-AT-linux.intel.com>, Simon Horman <horms-AT-verge.net.au>
Archive-link:  Article

This series adds support for selecting a netconsole egress interface by
specifying the MAC address (in place of the interface name) in the
boot/module parameter.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
---
Changes in v6:
- No changes, just rebase on net-next/main and repost for patchwork
  automation
- Link to v5: https://lore.kernel.org/r/20250220-netconsole-v5-0-4aeafa...

Changes in v5:
- Drop Breno Leitao's patch to add (non-RCU) dev_getbyhwaddr from this
  set since it has landed on net-next (Jakub Kicinski)
- Link to v4: https://lore.kernel.org/r/20250217-netconsole-v4-0-0c681c...

Changes in v4:
- Incorporate Breno Leitao's patch to add (non-RCU) dev_getbyhwaddr and
  use it (Jakub Kicinski)
- Use MAC_ADDR_STR_LEN in ieee80211_sta_debugfs_add as well (Michal
  Swiatkowski)
- Link to v3: https://lore.kernel.org/r/20250205-netconsole-v3-0-132a31...

Changes in v3:
- Rename MAC_ADDR_LEN to MAC_ADDR_STR_LEN (Johannes Berg)
- Link to v2: https://lore.kernel.org/r/20250204-netconsole-v2-0-5ef5eb...

---
Uday Shankar (2):
      net, treewide: define and use MAC_ADDR_STR_LEN
      netconsole: allow selection of egress interface via MAC address

 Documentation/networking/netconsole.rst |  6 +++-
 drivers/net/netconsole.c                |  2 +-
 drivers/nvmem/brcm_nvram.c              |  2 +-
 drivers/nvmem/layouts/u-boot-env.c      |  2 +-
 include/linux/if_ether.h                |  3 ++
 include/linux/netpoll.h                 |  6 ++++
 lib/net_utils.c                         |  4 +--
 net/core/netpoll.c                      | 51 +++++++++++++++++++++++++--------
 net/mac80211/debugfs_sta.c              |  7 +++--
 9 files changed, 61 insertions(+), 22 deletions(-)
---
base-commit: 0ea09cbf8350b70ad44d67a1dcb379008a356034
change-id: 20250204-netconsole-4c610e2f871c

Best regards,
-- 
Uday Shankar <ushankar@purestorage.com>




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