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hc
2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd 
 kernel/drivers/usb/serial/sierra.c
....@@ -45,10 +45,9 @@
4545 
4646 static bool nmea;
4747 
48
-/* Used in interface blacklisting */
49
-struct sierra_iface_info {
50
-	const u32 infolen;	/* number of interface numbers on blacklist */
51
-	const u8  *ifaceinfo;	/* pointer to the array holding the numbers */
48
+struct sierra_iface_list {
49
+	const u8 *nums;		/* array of interface numbers */
50
+	size_t count;		/* number of elements in array */
5251 };
5352 
5453 struct sierra_intf_private {
....@@ -101,38 +100,19 @@
101100 	return num_ports;
102101 }
103102 
104
-static int is_blacklisted(const u8 ifnum,
105
-				const struct sierra_iface_info *blacklist)
103
+static bool is_listed(const u8 ifnum, const struct sierra_iface_list *list)
106104 {
107
-	const u8  *info;
108105 	int i;
109106 
110
-	if (blacklist) {
111
-		info = blacklist->ifaceinfo;
107
+	if (!list)
108
+		return false;
112109 
113
-		for (i = 0; i < blacklist->infolen; i++) {
114
-			if (info[i] == ifnum)
115
-				return 1;
116
-		}
110
+	for (i = 0; i < list->count; i++) {
111
+		if (list->nums[i] == ifnum)
112
+			return true;
117113 	}
118
-	return 0;
119
-}
120114 
121
-static int is_himemory(const u8 ifnum,
122
-				const struct sierra_iface_info *himemorylist)
123
-{
124
-	const u8  *info;
125
-	int i;
126
-
127
-	if (himemorylist) {
128
-		info = himemorylist->ifaceinfo;
129
-
130
-		for (i=0; i < himemorylist->infolen; i++) {
131
-			if (info[i] == ifnum)
132
-				return 1;
133
-		}
134
-	}
135
-	return 0;
115
+	return false;
136116 }
137117 
138118 static u8 sierra_interface_num(struct usb_serial *serial)
....@@ -143,6 +123,7 @@
143123 static int sierra_probe(struct usb_serial *serial,
144124 			const struct usb_device_id *id)
145125 {
126
+	const struct sierra_iface_list *ignore_list;
146127 	int result = 0;
147128 	struct usb_device *udev;
148129 	u8 ifnum;
....@@ -161,10 +142,10 @@
161142 		usb_set_interface(udev, ifnum, 1);
162143 	}
163144 
164
-	if (is_blacklisted(ifnum,
165
-				(struct sierra_iface_info *)id->driver_info)) {
166
-		dev_dbg(&serial->dev->dev,
167
-			"Ignoring blacklisted interface #%d\n", ifnum);
145
+	ignore_list = (const struct sierra_iface_list *)id->driver_info;
146
+
147
+	if (is_listed(ifnum, ignore_list)) {
148
+		dev_dbg(&serial->dev->dev, "Ignoring interface #%d\n", ifnum);
168149 		return -ENODEV;
169150 	}
170151 
....@@ -173,22 +154,22 @@
173154 
174155 /* interfaces with higher memory requirements */
175156 static const u8 hi_memory_typeA_ifaces[] = { 0, 2 };
176
-static const struct sierra_iface_info typeA_interface_list = {
177
-	.infolen = ARRAY_SIZE(hi_memory_typeA_ifaces),
178
-	.ifaceinfo = hi_memory_typeA_ifaces,
157
+static const struct sierra_iface_list typeA_interface_list = {
158
+	.nums	= hi_memory_typeA_ifaces,
159
+	.count	= ARRAY_SIZE(hi_memory_typeA_ifaces),
179160 };
180161 
181162 static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 };
182
-static const struct sierra_iface_info typeB_interface_list = {
183
-	.infolen = ARRAY_SIZE(hi_memory_typeB_ifaces),
184
-	.ifaceinfo = hi_memory_typeB_ifaces,
163
+static const struct sierra_iface_list typeB_interface_list = {
164
+	.nums	= hi_memory_typeB_ifaces,
165
+	.count	= ARRAY_SIZE(hi_memory_typeB_ifaces),
185166 };
186167 
187
-/* 'blacklist' of interfaces not served by this driver */
168
+/* 'ignorelist' of interfaces not served by this driver */
188169 static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 };
189
-static const struct sierra_iface_info direct_ip_interface_blacklist = {
190
-	.infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces),
191
-	.ifaceinfo = direct_ip_non_serial_ifaces,
170
+static const struct sierra_iface_list direct_ip_interface_ignore = {
171
+	.nums	= direct_ip_non_serial_ifaces,
172
+	.count	= ARRAY_SIZE(direct_ip_non_serial_ifaces),
192173 };
193174 
194175 static const struct usb_device_id id_table[] = {
....@@ -264,19 +245,19 @@
264245 	{ USB_DEVICE(0x1199, 0x6893) },	/* Sierra Wireless Device */
265246 	/* Sierra Wireless Direct IP modems */
266247 	{ USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68A3, 0xFF, 0xFF, 0xFF),
267
-	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
248
+	  .driver_info = (kernel_ulong_t)&direct_ip_interface_ignore
268249 	},
269250 	{ USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68AA, 0xFF, 0xFF, 0xFF),
270
-	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
251
+	  .driver_info = (kernel_ulong_t)&direct_ip_interface_ignore
271252 	},
272253 	{ USB_DEVICE(0x1199, 0x68AB) }, /* Sierra Wireless AR8550 */
273254 	/* AT&T Direct IP LTE modems */
274255 	{ USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF),
275
-	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
256
+	  .driver_info = (kernel_ulong_t)&direct_ip_interface_ignore
276257 	},
277258 	/* Airprime/Sierra Wireless Direct IP modems */
278259 	{ USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68A3, 0xFF, 0xFF, 0xFF),
279
-	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
260
+	  .driver_info = (kernel_ulong_t)&direct_ip_interface_ignore
280261 	},
281262 
282263 	{ }
....@@ -589,8 +570,7 @@
589570 		urb, port, portdata);
590571 
591572 	if (status == 0) {
592
-		struct usb_ctrlrequest *req_pkt =
593
-				(struct usb_ctrlrequest *)urb->transfer_buffer;
573
+		struct usb_ctrlrequest *req_pkt = urb->transfer_buffer;
594574 
595575 		if (!req_pkt) {
596576 			dev_dbg(&port->dev, "%s: NULL req_pkt\n",
....@@ -757,7 +737,8 @@
757737 
758738 	/*
759739 	 * Need to take susp_lock to make sure port is not already being
760
-	 * resumed, but no need to hold it due to initialized
740
+	 * resumed, but no need to hold it due to the tty-port initialized
741
+	 * flag.
761742 	 */
762743 	spin_lock_irq(&intfdata->susp_lock);
763744 	if (--intfdata->open_ports == 0)
....@@ -879,7 +860,7 @@
879860 {
880861 	struct usb_serial *serial = port->serial;
881862 	struct sierra_port_private *portdata;
882
-	const struct sierra_iface_info *himemoryp;
863
+	const struct sierra_iface_list *himemory_list;
883864 	u8 ifnum;
884865 
885866 	portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
....@@ -898,16 +879,16 @@
898879 	if (serial->num_ports == 1) {
899880 		/* Get interface number for composite device */
900881 		ifnum = sierra_interface_num(serial);
901
-		himemoryp = &typeB_interface_list;
882
+		himemory_list = &typeB_interface_list;
902883 	} else {
903884 		/* This is really the usb-serial port number of the interface
904885 		 * rather than the interface number.
905886 		 */
906887 		ifnum = port->port_number;
907
-		himemoryp = &typeA_interface_list;
888
+		himemory_list = &typeA_interface_list;
908889 	}
909890 
910
-	if (is_himemory(ifnum, himemoryp)) {
891
+	if (is_listed(ifnum, himemory_list)) {
911892 		portdata->num_out_urbs = N_OUT_URB_HM;
912893 		portdata->num_in_urbs  = N_IN_URB_HM;
913894 	}