Am Samstag, 3. Juni 2006 13:20 schrieb Daniel Drake:
> I tried to submit this patch yesterday, but it doesn't appear to have
> been delivered. The patch is probably a bit on the large side, so I'll
> try again over http:
>
> http://dev.gentoo.org/~dsd/kernel/zd1211rw.patch
>
> Any comments appreciated.
+static int read_mac_addr(struct zd_chip *chip, u8 *mac_addr)
+{
+ static const zd_addr_t addr[2] = { CR_MAC_ADDR_P1, CR_MAC_ADDR_P2 };
+ return _read_mac_addr(chip, mac_addr, (const zd_addr_t *)addr);
+}
Why on the stack?
+static int zd1211_hw_reset_phy(struct zd_chip *chip)
+{
+ static const struct zd_ioreq16 ioreqs[] = {
+ { CR0, 0x0a }, { CR1, 0x06 }, { CR2, 0x26 },
+ { CR3, 0x38 }, { CR4, 0x80 }, { CR9, 0xa0 },
+ { CR10, 0x81 }, { CR11, 0x00 }, { CR12, 0x7f },
+ { CR13, 0x8c }, { CR14, 0x80 }, { CR15, 0x3d },
+ { CR16, 0x20 }, { CR17, 0x1e }, { CR18, 0x0a },
+ { CR19, 0x48 }, { CR20, 0x0c }, { CR21, 0x0c },
+ { CR22, 0x23 }, { CR23, 0x90 }, { CR24, 0x14 },
+ { CR25, 0x40 }, { CR26, 0x10 }, { CR27, 0x19 },
+ { CR28, 0x7f }, { CR29, 0x80 }, { CR30, 0x4b },
+ { CR31, 0x60 }, { CR32, 0x43 }, { CR33, 0x08 },
+ { CR34, 0x06 }, { CR35, 0x0a }, { CR36, 0x00 },
+ { CR37, 0x00 }, { CR38, 0x38 }, { CR39, 0x0c },
+ { CR40, 0x84 }, { CR41, 0x2a }, { CR42, 0x80 },
+ { CR43, 0x10 }, { CR44, 0x12 }, { CR46, 0xff },
+ { CR47, 0x1E }, { CR48, 0x26 }, { CR49, 0x5b },
+ { CR64, 0xd0 }, { CR65, 0x04 }, { CR66, 0x58 },
+ { CR67, 0xc9 }, { CR68, 0x88 }, { CR69, 0x41 },
+ { CR70, 0x23 }, { CR71, 0x10 }, { CR72, 0xff },
+ { CR73, 0x32 }, { CR74, 0x30 }, { CR75, 0x65 },
+ { CR76, 0x41 }, { CR77, 0x1b }, { CR78, 0x30 },
+ { CR79, 0x68 }, { CR80, 0x64 }, { CR81, 0x64 },
+ { CR82, 0x00 }, { CR83, 0x00 }, { CR84, 0x00 },
+ { CR85, 0x02 }, { CR86, 0x00 }, { CR87, 0x00 },
+ { CR88, 0xff }, { CR89, 0xfc }, { CR90, 0x00 },
+ { CR91, 0x00 }, { CR92, 0x00 }, { CR93, 0x08 },
+ { CR94, 0x00 }, { CR95, 0x00 }, { CR96, 0xff },
+ { CR97, 0xe7 }, { CR98, 0x00 }, { CR99, 0x00 },
+ { CR100, 0x00 }, { CR101, 0xae }, { CR102, 0x02 },
+ { CR103, 0x00 }, { CR104, 0x03 }, { CR105, 0x65 },
+ { CR106, 0x04 }, { CR107, 0x00 }, { CR108, 0x0a },
+ { CR109, 0xaa }, { CR110, 0xaa }, { CR111, 0x25 },
+ { CR112, 0x25 }, { CR113, 0x00 }, { CR119, 0x1e },
+ { CR125, 0x90 }, { CR126, 0x00 }, { CR127, 0x00 },
+ { },
+ { CR5, 0x00 }, { CR6, 0x00 }, { CR7, 0x00 },
+ { CR8, 0x00 }, { CR9, 0x20 }, { CR12, 0xf0 },
+ { CR20, 0x0e }, { CR21, 0x0e }, { CR27, 0x10 },
+ { CR44, 0x33 }, { CR47, 0x1E }, { CR83, 0x24 },
+ { CR84, 0x04 }, { CR85, 0x00 }, { CR86, 0x0C },
+ { CR87, 0x12 }, { CR88, 0x0C }, { CR89, 0x00 },
+ { CR90, 0x10 }, { CR91, 0x08 }, { CR93, 0x00 },
+ { CR94, 0x01 }, { CR95, 0x00 }, { CR96, 0x50 },
+ { CR97, 0x37 }, { CR98, 0x35 }, { CR101, 0x13 },
+ { CR102, 0x27 }, { CR103, 0x27 }, { CR104, 0x18 },
+ { CR105, 0x12 }, { CR109, 0x27 }, { CR110, 0x27 },
+ { CR111, 0x27 }, { CR112, 0x27 }, { CR113, 0x27 },
+ { CR114, 0x27 }, { CR115, 0x26 }, { CR116, 0x24 },
+ { CR117, 0xfc }, { CR118, 0xfa }, { CR120, 0x4f },
+ { CR123, 0x27 }, { CR125, 0xaa }, { CR127, 0x03 },
+ { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
+ { CR131, 0x0C }, { CR136, 0xdf }, { CR137, 0x40 },
+ { CR138, 0xa0 }, { CR139, 0xb0 }, { CR140, 0x99 },
+ { CR141, 0x82 }, { CR142, 0x54 }, { CR143, 0x1c },
+ { CR144, 0x6c }, { CR147, 0x07 }, { CR148, 0x4c },
+ { CR149, 0x50 }, { CR150, 0x0e }, { CR151, 0x18 },
+ { CR160, 0xfe }, { CR161, 0xee }, { CR162, 0xaa },
+ { CR163, 0xfa }, { CR164, 0xfa }, { CR165, 0xea },
+ { CR166, 0xbe }, { CR167, 0xbe }, { CR168, 0x6a },
+ { CR169, 0xba }, { CR170, 0xba }, { CR171, 0xba },
+ /* Note: CR204 must lead the CR203 */
+ { CR204, 0x7d },
+ { },
+ { CR203, 0x30 },
+ };
This is too much to allocate on the stack.
+static void disconnect(struct usb_interface *intf)
+{
+ struct net_device *netdev = zd_intf_to_netdev(intf);
+ struct zd_mac *mac = zd_netdev_mac(netdev);
+ struct zd_usb *usb = &mac->chip.usb;
+
+ dev_dbg_f(zd_usb_dev(usb), "\n");
+
+ zd_netdev_disconnect(netdev);
+
+ /* Just in case something has gone wrong! */
+ zd_usb_disable_rx(usb);
+ zd_usb_disable_int(usb);
+
+ /* If the disconnect has been caused by a removal of the
+ * driver module, the reset allows reloading of the driver. If the
+ * reset will not be executed here, the upload of the firmware in the
+ * probe function caused by the reloading of the driver will fail.
+ */
+ usb_reset_device(interface_to_usbdev(intf));
+
+ /* If somebody still waits on this lock now, this is an error. */
+ zd_netdev_free(netdev);
+ dev_dbg(&intf->dev, "disconnected\n");
+}
This is racy. It allows io to disconnected devices. You must take the
lock and set a flag that you test after you've taken the lock elsewhere.
Regards
Oliver
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