diff options
| author | Breno Leitao <leitao@debian.org> | 2024-04-22 05:38:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-24 12:00:16 +0100 |
| commit | 1bdab0ee635d8ce1faf469f1ba8a62de786fb3ea (patch) | |
| tree | abeaac593d66a4d7c873e42b7990e30650869d0a | |
| parent | b209bd6d0bffb8991aba568e2d9a892c86a1a43c (diff) | |
| download | net-next-1bdab0ee635d8ce1faf469f1ba8a62de786fb3ea.tar.gz | |
net: ipa: allocate dummy net_device dynamically
Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].
Un-embed the net_device from the private struct by converting it
into a pointer. Then use the leverage the new alloc_netdev_dummy()
helper to allocate and initialize dummy devices.
[1] https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ipa/gsi.c | 12 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi.h | 2 |
2 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 6c8feb640a97e4..4c3227e77898cf 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -1728,10 +1728,10 @@ static int gsi_channel_setup_one(struct gsi *gsi, u32 channel_id) gsi_channel_program(channel, true); if (channel->toward_ipa) - netif_napi_add_tx(&gsi->dummy_dev, &channel->napi, + netif_napi_add_tx(gsi->dummy_dev, &channel->napi, gsi_channel_poll); else - netif_napi_add(&gsi->dummy_dev, &channel->napi, + netif_napi_add(gsi->dummy_dev, &channel->napi, gsi_channel_poll); return 0; @@ -2367,12 +2367,14 @@ int gsi_init(struct gsi *gsi, struct platform_device *pdev, /* GSI uses NAPI on all channels. Create a dummy network device * for the channel NAPI contexts to be associated with. */ - init_dummy_netdev(&gsi->dummy_dev); + gsi->dummy_dev = alloc_netdev_dummy(0); + if (!gsi->dummy_dev) + return -ENOMEM; init_completion(&gsi->completion); ret = gsi_reg_init(gsi, pdev); if (ret) - return ret; + goto err_reg_exit; ret = gsi_irq_init(gsi, pdev); /* No matching exit required */ if (ret) @@ -2387,6 +2389,7 @@ int gsi_init(struct gsi *gsi, struct platform_device *pdev, return 0; err_reg_exit: + free_netdev(gsi->dummy_dev); gsi_reg_exit(gsi); return ret; @@ -2397,6 +2400,7 @@ void gsi_exit(struct gsi *gsi) { mutex_destroy(&gsi->mutex); gsi_channel_exit(gsi); + free_netdev(gsi->dummy_dev); gsi_reg_exit(gsi); } diff --git a/drivers/net/ipa/gsi.h b/drivers/net/ipa/gsi.h index 833135b35380f5..9d8e05d950e34f 100644 --- a/drivers/net/ipa/gsi.h +++ b/drivers/net/ipa/gsi.h @@ -151,7 +151,7 @@ struct gsi { struct mutex mutex; /* protects commands, programming */ struct gsi_channel channel[GSI_CHANNEL_COUNT_MAX]; struct gsi_evt_ring evt_ring[GSI_EVT_RING_COUNT_MAX]; - struct net_device dummy_dev; /* needed for NAPI */ + struct net_device *dummy_dev; /* needed for NAPI */ }; /** |