- 02 12月, 2006 30 次提交
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由 Alan Stern 提交于
This patch (as813) gathers together common code for USB interface autosuspend/autoresume. It also adds some simple checking at the time an autosuspend request is made, to see whether the request will fail. This way we don't add a workqueue entry when it would end up doing nothing. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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We have no benefits of having the usb_endpoint_* functions as functions, but making them inline saves text and data segment sizes: text data bss dec hex filename 14893634 3108770 1108840 19111244 1239d4c vmlinux.func 14893185 3108566 1108840 19110591 1239abf vmlinux.inline This is the result of a 2.6.19-rc3 kernel compiled with GCC 4.1.1 without CONFIG_MODULES, CONFIG_CC_OPTIMIZE_FOR_SIZE, CONFIG_REGPARM options set. USB support is fully enabled (while most of the other drivers are not), and that kernel has most of the USB code ported to use the endpoint functions. That happens because a call to those functions are expensive (in terms of bytes), while the function's size is smaller or have the same 'size' of the call. Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as811) removes some stale testing code from the root-hub resume routine in ohci-hcd. It also adds a spin_lock_irq() call that inadvertently got left out of an error pathway. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Eric Sesterhenn 提交于
replace open coded kmemdup() to save some screen space, and allow inlining/not inlining to be triggered by gcc. Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as808b) moves the Root Hub Status Change interrupt-disable code in ohci-hcd back into the interrupt handler proper, to avoid the chance of adverse interactions with mediocre hardware implementations. It also deletes the root-hub status timer from within the interrupt-enable routine. There's no need to poll for status any more once interrupts are re-enabled. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as806) fixes a compiler warning when ohci-hcd is built with CONFIG_PM turned off. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as804) makes USB driver matching ignore the interface class, subclass, and protocol if the device class is Vendor Specific. Drivers can override this policy by specifying a Vendor ID as part of the match; then vendor-specific matches are allowed. Linus Walleij has reported a problem this patch fixes. When a particular mass-storage device is switched from mass-storage mode to Media Transfer Protocol, the interface class remains set to mass-storage and usb-storage binds to it erroneously, even though the device class changes to Vendor-Specific. This may cause a problem for some drivers until their match records can be updated to include Vendor IDs. But if it does, then those records were broken to begin with. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
The USB HID driver doesn't include any code to handle a STALL on the interrupt endpoint. While this may be uncommon, it does happen sometimes. This patch (as805) adds a fix. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 inaky@linux.intel.com 提交于
Wireless USB Host Controllers accept a large number of devices per host, which shows up as a large number of ports in its root hub. When the number of ports in a hub device goes over 16, the activation of the hub fails with the cryptic message in klogd. hub 2-0:1.0: activate --> -22 Following this further, it was seen that: hub_probe() hub_configure() generates pipe number pseudo allocates buffer 'maxp' bytes in size using usb_maxpacket() The endpoint descriptor for a root hub interrupt endpoint is declared in drivers/usb/core/hcd.c:hs_rh_config_descriptor and declares it to be size two (supporting 15 devices max). hub_activate() usb_hcd_submit_urb() rh_urb_enqueue() urb->pipe is neither int nor ctl, so it errors out rh_queue_status() Returns -EINVAL because the buffer length is smaller than the minimum needed to report all the hub port bits as in accordance with USB2.0[11.12.3]. There has to be trunc((PORTS + 1 + 7) / 8) bytes of space at least. Alan Stern confirmed that the reason for reading maxpktsize and not the right amount is because some hubs are known to return more data and thus cause overflow. So this patch simply changes the code to make the interrupt endpoint's max packet size be at least the minimum required by USB_MAXCHILDREN (instead of a fixed magic number) and add documentation for that. This way we are always ahead of the limit. Signed-off-by: NInaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 inaky@linux.intel.com 提交于
Current Wireless USB host hardware (Intel i1480 for example) allows up to 22 devices to connect, thus bringing up the max number of children in the WUSB Host Controller to 22 'fake' ports. Upcoming hardware might raise that limit. Makes almost no difference to go to 31, as the bit arrays are byte-aligned (plus an extra bit in general), so 22 bits fit in 4 bytes as 31 do. As well, the only other array that depends on USB_MAXCHILDREN is 'struct usb_hub->indicator'. By declaring it 'u8' instead of 'enum hub_led_mode', we reduce the size of each entry from 4 bytes (in i386) to 1, which will add as we when are doubling USB_MAXCHILDREN (with 16 the size of that array is 64 bytes, with 31 would be 128; by using u8 that goes down to 31 bytes). Signed-off-by: NInaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 30 11月, 2006 1 次提交
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由 Francois Romieu 提交于
This changes the type of variable "i" in rtl8169_init_one() from "unsigned int" to "int". "i" is checked for < 0 later, which can never happen for "unsigned". This results in broken error handling. Signed-off-by: NMichael Buesch <mb@bu3sch.de> Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 29 11月, 2006 1 次提交
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由 Joakim Tjernlund 提交于
When we sleep and wait for a suspended operation to be resumed, go back and check until it's ready -- don't just continue after the first time we're woken. This can cause file system corruption. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 28 11月, 2006 3 次提交
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由 Brian King 提交于
Fixes ata_sas_queuecmd to properly handle a failure from __ata_scsi_queuecmd. Signed-off-by: NBrian King <brking@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jason Gaston 提交于
This patch adds the Intel ICH9 AHCI controller DID's for SATA support. Signed-off-by: NJason Gaston <jason.d.gaston@intel.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Do not schedule EH for revalidation on wcache on/off if old EH. Old EH cannot handle it and will result in WARN_ON()'s and oops. This closes bug #7412. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 26 11月, 2006 5 次提交
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由 Andrew de Quincey 提交于
The tda10086 causes an oops (divide by zero) if a zero symbol rate is used; this prevents this. Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Hans Verkuil 提交于
The old code would accept any device on the same i2c address as the saa711x chips as an saa711x. However, this fails with saa717x chips, which use that same address and so are misdetected as a saa7111. Now check whether the chip is really a saa711x model. Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Luca Risolia 提交于
The patch fix bug 5748. Signed-off-by: NLuca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Ira Snyder 提交于
Sparse noticed a lock imbalance in read_from_buf(). Further inspection shows that the lock should not be held when the function exits. This adds a spin_unlock_irqrestore(), so that every exit path of the read_from_buf() function is consistent. The unlock was missing on an error path. Signed-off-by: NIra W. Snyder <devel@irasnyder.com> Signed-off-by: NHans J. Koch <koch@hjk-az.de> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Andrew de Quincey 提交于
Spotted by coverity/Adrian Bunk. Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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