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From: Oliver Neukum <oneukum@suse.com>
To: andrew@lunn.ch, bjorn@mork.no, netdev@vger.kernel.org
Cc: Oliver Neukum <oneukum@suse.com>
Subject: [RFCv3 09/13] net: usb: use allocation on demand for usbnet
Date: Mon,  9 Mar 2026 17:53:32 +0100	[thread overview]
Message-ID: <20260309165614.861929-9-oneukum@suse.com> (raw)
In-Reply-To: <20260309165614.861929-1-oneukum@suse.com>

This converts the simple cases for allocation of
private room for mnidrivers to dynamic allocation.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/net/usb/ax88172a.c | 1 +
 drivers/net/usb/cdc_mbim.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
index f9b4364e0a0f..489a09759593 100644
--- a/drivers/net/usb/ax88172a.c
+++ b/drivers/net/usb/ax88172a.c
@@ -355,4 +355,5 @@ const struct driver_info ax88172a_info = {
 		 FLAG_MULTI_PACKET,
 	.rx_fixup = ax88172a_rx_fixup,
 	.tx_fixup = asix_tx_fixup,
+	.required_room = sizeof(struct ax88172a_private),
 };
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 5522dc137d45..e319fe37986f 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -557,6 +557,7 @@ static const struct driver_info cdc_mbim_info = {
 	.manage_power = cdc_mbim_manage_power,
 	.rx_fixup = cdc_mbim_rx_fixup,
 	.tx_fixup = cdc_mbim_tx_fixup,
+	.required_room = sizeof(struct cdc_mbim_state),
 };
 
 /* MBIM and NCM devices should not need a ZLP after NTBs with
@@ -581,6 +582,7 @@ static const struct driver_info cdc_mbim_info_zlp = {
 	.manage_power = cdc_mbim_manage_power,
 	.rx_fixup = cdc_mbim_rx_fixup,
 	.tx_fixup = cdc_mbim_tx_fixup,
+	.required_room = sizeof(struct cdc_mbim_state),
 };
 
 /* The spefication explicitly allows NDPs to be placed anywhere in the
@@ -601,6 +603,7 @@ static const struct driver_info cdc_mbim_info_ndp_to_end = {
 	.rx_fixup = cdc_mbim_rx_fixup,
 	.tx_fixup = cdc_mbim_tx_fixup,
 	.data = CDC_NCM_FLAG_NDP_TO_END,
+	.required_room = sizeof(struct cdc_mbim_state),
 };
 
 /* Some modems (e.g. Telit LE922A6) do not work properly with altsetting
@@ -616,6 +619,7 @@ static const struct driver_info cdc_mbim_info_avoid_altsetting_toggle = {
 	.rx_fixup = cdc_mbim_rx_fixup,
 	.tx_fixup = cdc_mbim_tx_fixup,
 	.data = CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE,
+	.required_room = sizeof(struct cdc_mbim_state),
 };
 
 static const struct usb_device_id mbim_devs[] = {
-- 
2.53.0


  parent reply	other threads:[~2026-03-09 16:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-09 16:53 [RFCv3 01/13] net: usb: usbnet: use proper ep number macros Oliver Neukum
2026-03-09 16:53 ` [RFCv3 02/13] net: usb: move updating filter and status from cdc to usbnet Oliver Neukum
2026-03-09 16:53 ` [RFCv3 03/13] net: usb: centralize usbnet_cdc_zte_rx_fixup in usbnet Oliver Neukum
2026-03-09 16:53 ` [RFCv4 04/13] net: usb: usbnet: add access helper for private data Oliver Neukum
2026-03-09 16:53 ` [RFCv5 05/13] net: usb: use accessor helper for usbnet " Oliver Neukum
2026-03-09 17:46   ` Bjørn Mork
2026-03-10 13:00     ` Oliver Neukum
2026-03-10 13:23       ` Bjørn Mork
2026-03-09 16:53 ` [RFCv3 06/13] net: usb: usbnet: add cdc_state to struct usbnet Oliver Neukum
2026-03-09 16:53 ` [RFCv3 07/13] net: usb: use cdc_state in " Oliver Neukum
2026-03-09 16:53 ` [RFCv3 08/13] net: usb: usbnet: allow drivers to specify private space needed Oliver Neukum
2026-03-09 16:53 ` Oliver Neukum [this message]
2026-03-09 16:53 ` [RFCv3 10/13] net: usb: sierra_net: use dynamic private allocation Oliver Neukum
2026-03-09 16:53 ` [RFCv3 11/13] net: usb: cdc_ncm: " Oliver Neukum
2026-03-09 16:53 ` [RFCv3 12/13] net: usb: smsc95xx: " Oliver Neukum
2026-03-09 16:53 ` [RFCv3 13/13] net: usb: lg-vl600: " Oliver Neukum

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