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Tue, 3 Mar 2026 14:52:51 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id wFIOOcP1pmmPKQAAD6G6ig (envelope-from ); Tue, 03 Mar 2026 14:52:51 +0000 From: Oliver Neukum To: andrew@lunn.ch, bjorn@mork.no, netdev@vger.kernel.org Cc: Oliver Neukum Subject: [RFCv2 09/13] net: usb: use allocation on demand for usbnet Date: Tue, 3 Mar 2026 15:50:29 +0100 Message-ID: <20260303145242.1377514-9-oneukum@suse.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260303145242.1377514-1-oneukum@suse.com> References: <20260303145242.1377514-1-oneukum@suse.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:mid,suse.com:email,imap1.dmz-prg2.suse.org:helo]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FUZZY_RATELIMITED(0.00)[rspamd.com]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; RCPT_COUNT_THREE(0.00)[4]; RCVD_TLS_ALL(0.00)[] X-Spam-Flag: NO X-Spam-Score: -2.80 X-Spam-Level: This converts the simple cases for allocation of private room for mnidrivers to dynamic allocation. Signed-off-by: Oliver Neukum --- 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