#
5033ac5c |
|
01-Oct-2022 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: make devnode() callback in usb_class_driver take a const * With the changes to the driver core to make more pointers const, the USB subsystem also needs to be modified to take a const * for the devnode callback so that the driver core's constant pointer will also be properly propagated. Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: Juergen Stuber <starblue@users.sourceforge.net> Reviewed-by: Johan Hovold <johan@kernel.org> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Reviewed-by: Jiri Kosina <jkosina@suse.cz> Link: https://lore.kernel.org/r/20221001165128.2688526-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b175d273 |
|
08-Dec-2020 |
Alan Stern <stern@rowland.harvard.edu> |
USB: legotower: fix logical error in recent commit Commit d9f0d82f06c6 ("USB: legousbtower: use usb_control_msg_recv()") contained an elementary logical error. The check of the return code from the new usb_control_msg_recv() function was inverted. Reported-and-tested-by: syzbot+9be25235b7a69b24d117@syzkaller.appspotmail.com Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20201208163042.GD1298255@rowland.harvard.edu Fixes: d9f0d82f06c6 ("USB: legousbtower: use usb_control_msg_recv()") Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d9f0d82f |
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23-Sep-2020 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legousbtower: use usb_control_msg_recv() The usb_control_msg_recv() function can handle data on the stack, as well as properly detecting short reads, so move to use that function instead of the older usb_control_msg() call. This ends up removing a lot of extra lines in the driver. v2: change API of usb_control_msg_send() Cc: Juergen Stuber <starblue@users.sourceforge.net> Link: https://lore.kernel.org/r/20200914153756.3412156-6-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20200923134348.23862-12-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
cf58e8e7 |
|
23-Sep-2020 |
Oliver Neukum <oneukum@suse.com> |
Revert "USB: legousbtower: use usb_control_msg_recv()" This reverts commit be40c366416bf6ff74b25fd02e38cb6eaba497d1. The API has to be changed. Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://lore.kernel.org/r/20200923134348.23862-8-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
be40c366 |
|
14-Sep-2020 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legousbtower: use usb_control_msg_recv() The usb_control_msg_recv() function can handle data on the stack, as well as properly detecting short reads, so move to use that function instead of the older usb_control_msg() call. This ends up removing a lot of extra lines in the driver. Cc: Juergen Stuber <starblue@users.sourceforge.net> Link: https://lore.kernel.org/r/20200914153756.3412156-6-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
4ac2c460 |
|
06-Jul-2020 |
Lee Jones <lee.jones@linaro.org> |
usb: misc: legousbtower: Demote function header which is clearly not kerneldoc Fixes the following W=1 kernel build warning(s): drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'dev' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'function' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'size' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'data' not described in 'lego_usb_tower_debug_data' Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: David Glance <davidgsf@sourceforge.net> Cc: david <david@csse.uwa.edu.au> Cc: legousb-devel@lists.sourceforge.net Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20200706133341.476881-8-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
464b7d0e |
|
06-Jul-2020 |
Lee Jones <lee.jones@linaro.org> |
usb: misc: legousbtower: Demote obvious misuse of kerneldoc to standard comment blocks No attempt has been made to document any of the demoted functions here. Fixes the following W=1 kernel build warning(s): drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'dev' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'function' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'size' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:280: warning: Function parameter or member 'data' not described in 'lego_usb_tower_debug_data' drivers/usb/misc/legousbtower.c:290: warning: Function parameter or member 'dev' not described in 'tower_delete' drivers/usb/misc/legousbtower.c:306: warning: Function parameter or member 'inode' not described in 'tower_open' drivers/usb/misc/legousbtower.c:306: warning: Function parameter or member 'file' not described in 'tower_open' drivers/usb/misc/legousbtower.c:405: warning: Function parameter or member 'inode' not described in 'tower_release' drivers/usb/misc/legousbtower.c:405: warning: Function parameter or member 'file' not described in 'tower_release' drivers/usb/misc/legousbtower.c:452: warning: Function parameter or member 'dev' not described in 'tower_check_for_read_packet' drivers/usb/misc/legousbtower.c:468: warning: Function parameter or member 'file' not described in 'tower_poll' drivers/usb/misc/legousbtower.c:468: warning: Function parameter or member 'wait' not described in 'tower_poll' drivers/usb/misc/legousbtower.c:494: warning: Function parameter or member 'file' not described in 'tower_llseek' drivers/usb/misc/legousbtower.c:494: warning: Function parameter or member 'off' not described in 'tower_llseek' drivers/usb/misc/legousbtower.c:494: warning: Function parameter or member 'whence' not described in 'tower_llseek' drivers/usb/misc/legousbtower.c:503: warning: Function parameter or member 'file' not described in 'tower_read' drivers/usb/misc/legousbtower.c:503: warning: Function parameter or member 'buffer' not described in 'tower_read' drivers/usb/misc/legousbtower.c:503: warning: Function parameter or member 'count' not described in 'tower_read' drivers/usb/misc/legousbtower.c:503: warning: Function parameter or member 'ppos' not described in 'tower_read' drivers/usb/misc/legousbtower.c:587: warning: Function parameter or member 'file' not described in 'tower_write' drivers/usb/misc/legousbtower.c:587: warning: Function parameter or member 'buffer' not described in 'tower_write' drivers/usb/misc/legousbtower.c:587: warning: Function parameter or member 'count' not described in 'tower_write' drivers/usb/misc/legousbtower.c:587: warning: Function parameter or member 'ppos' not described in 'tower_write' drivers/usb/misc/legousbtower.c:669: warning: Function parameter or member 'urb' not described in 'tower_interrupt_in_callback' drivers/usb/misc/legousbtower.c:724: warning: Function parameter or member 'urb' not described in 'tower_interrupt_out_callback' drivers/usb/misc/legousbtower.c:752: warning: Function parameter or member 'interface' not described in 'tower_probe' drivers/usb/misc/legousbtower.c:752: warning: Function parameter or member 'id' not described in 'tower_probe' drivers/usb/misc/legousbtower.c:863: warning: Function parameter or member 'interface' not described in 'tower_disconnect' Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: David Glance <davidgsf@sourceforge.net> Cc: david <david@csse.uwa.edu.au> Cc: legousb-devel@lists.sourceforge.net Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20200706133341.476881-2-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
c1f602da |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop superfluous newlines Drop some superfluous newlines before conditionals which made the code harder to read. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-15-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
3c84f4bb |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop superfluous brackets Drop superfluous brackets around single-line blocks. Also add missing white space around operators in a for-expression being modified. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-14-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
a0cd1df9 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: clean up runaway white space Drop space between function identifiers and opening parenthesis, which was no longer even used consistently within the driver. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-13-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
72877248 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop redundant endianness comments The endianness is already encoded in the type specifier so drop the redundant little-endian comments from the message structs. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-12-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
a76c234f |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop unnecessary packed attributes Drop the packed attributes from the two message structs whose fields are naturally aligned and do not have any padding. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-11-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
7cfa11a5 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: clean up pointer declarations in driver data Clean up the pointer declarations in the driver data, whose style wasn't even consistent with the rest of the driver. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-10-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
aa6f3832 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: remove tower_abort_transfers() Drop the tower_abort_transfers() function which is now only called from release and instead explicitly kill the two URBs. This incidentally also fixes the outdated comment about freeing memory. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-9-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
bafd1b1c |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: stop interrupt-out URB unconditionally Stop also the interrupt-out URB unconditionally in tower_abort_transfers() which is called from release() (for connected devices). Calling usb_kill_urb() for an idle URB is perfectly fine. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-8-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
728fcd55 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop redundant interrupt-in running flag Drop the redundant interrupt-in-running flag, which tried to keep track of when the interrupt-in URB was in flight. This isn't needed since we can stop the URB unconditionally in tower_abort_transfers() and the URB can not be submitted while usb_kill_urb() is running anyway. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-7-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
835bd2b5 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop noisy disconnect messages User space already sees -ENODEV in case it tries to do I/O post disconnect, no need to spam the logs with printk messages that don't even include any device-id information. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b5a80252 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop redundant open_count check Drop redundant open_count check in release; the open count is used as a flag and is only set to 0 or 1. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
30da837a |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: zero driver data at allocation Zero the driver data at allocation rather than depend on explicit zeroing, which easy to miss. Also drop an unnecessary driver-data pointer initialisation. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
07efa873 |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop redundant NULL check Drop redundant NULL check from tower_abort_transfers(), which is never called with a NULL argument. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
fa5e146e |
|
05-Nov-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: drop redundant MODULE_LICENSE ifdef The MODULE_LICENSE macro is unconditionally defined in module.h, no need to ifdef its use. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
fd47a417 |
|
11-Oct-2019 |
Dan Carpenter <dan.carpenter@oracle.com> |
USB: legousbtower: fix a signedness bug in tower_probe() The problem is that sizeof() is unsigned long so negative error codes are type promoted to high positive values and the condition becomes false. Fixes: 1d427be4a39d ("USB: legousbtower: fix slab info leak at probe") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191011141115.GA4521@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b6c03e5f |
|
10-Oct-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix memleak on disconnect If disconnect() races with release() after a process has been interrupted, release() could end up returning early and the driver would fail to free its driver data. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191010125835.27031-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
726b55d0 |
|
09-Oct-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix use-after-free on release The driver was accessing its struct usb_device in its release() callback without holding a reference. This would lead to a use-after-free whenever the device was disconnected while the character device was still open. Fixes: fef526cae700 ("USB: legousbtower: remove custom debug macro") Cc: stable <stable@vger.kernel.org> # 3.12 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191009153848.8664-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
0b074f69 |
|
19-Sep-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix open after failed reset request The driver would return with a nonzero open count in case the reset control request failed. This would prevent any further attempts to open the char dev until the device was disconnected. Fix this by incrementing the open count only on successful open. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Johan Hovold <johan@kernel.org> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20190919083039.30898-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
cd81e6fa |
|
19-Sep-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix potential NULL-deref on disconnect The driver is using its struct usb_device pointer as an inverted disconnected flag, but was setting it to NULL before making sure all completion handlers had run. This could lead to a NULL-pointer dereference in a number of dev_dbg and dev_err statements in the completion handlers which relies on said pointer. Fix this by unconditionally stopping all I/O and preventing resubmissions by poisoning the interrupt URBs at disconnect and using a dedicated disconnected flag. This also makes sure that all I/O has completed by the time the disconnect callback returns. Fixes: 9d974b2a06e3 ("USB: legousbtower.c: remove err() usage") Fixes: fef526cae700 ("USB: legousbtower: remove custom debug macro") Fixes: 4dae99638097 ("USB: legotower: remove custom debug macro and module parameter") Cc: stable <stable@vger.kernel.org> # 3.5 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20190919083039.30898-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
33a78132 |
|
19-Sep-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix deadlock on disconnect Fix a potential deadlock if disconnect races with open. Since commit d4ead16f50f9 ("USB: prevent char device open/deregister race") core holds an rw-semaphore while open is called and when releasing the minor number during deregistration. This can lead to an ABBA deadlock if a driver takes a lock in open which it also holds during deregistration. This effectively reverts commit 78663ecc344b ("USB: disconnect open race in legousbtower") which needlessly introduced this issue after a generic fix for this race had been added to core by commit d4ead16f50f9 ("USB: prevent char device open/deregister race"). Fixes: 78663ecc344b ("USB: disconnect open race in legousbtower") Cc: stable <stable@vger.kernel.org> # 2.6.24 Reported-by: syzbot+f9549f5ee8a5416f0b95@syzkaller.appspotmail.com Tested-by: syzbot+f9549f5ee8a5416f0b95@syzkaller.appspotmail.com Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20190919083039.30898-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
1d427be4 |
|
19-Sep-2019 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: fix slab info leak at probe Make sure to check for short transfers when retrieving the version information at probe to avoid leaking uninitialised slab data when logging it. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20190919083039.30898-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
4327059a |
|
24-Jun-2018 |
Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
usb: legousbtower: use irqsave() in USB's complete callback The USB completion callback does not disable interrupts while acquiring the lock. We want to remove the local_irq_disable() invocation from __usb_hcd_giveback_urb() and therefore it is required for the callback handler to disable the interrupts while acquiring the lock. The callback may be invoked either in IRQ or BH context depending on the USB host controller. Use the _irqsave() variant of the locking primitives. Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: legousb-devel@lists.sourceforge.net Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
a9a08845 |
|
11-Feb-2018 |
Linus Torvalds <torvalds@linux-foundation.org> |
vfs: do bulk POLL* -> EPOLL* replacement This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
afc9a42b |
|
03-Jul-2017 |
Al Viro <viro@zeniv.linux.org.uk> |
the rest of drivers/*: annotate ->poll() instances Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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#
5d62afbe |
|
02-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: misc: Remove redundant license text Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Keith Packard <keithp@keithp.com> Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: Cesar Miquel <miquel@df.uba.ar> Cc: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
5fd54ace |
|
03-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: add SPDX identifiers to all remaining files in drivers/usb/ It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
c35c376f |
|
19-Jul-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: misc: remove unneeded MODULE_VERSION() usage MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the USB misc drivers. Along with this, some DRIVER_VERSION macros were removed as they are also pointless. Cc: Keith Packard <keithp@keithp.com> Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: Cesar Miquel <miquel@df.uba.ar> Acked-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
0bd193d6 |
|
13-May-2017 |
Maksim Salau <maksim.salau@gmail.com> |
usb: misc: legousbtower: Fix memory leak get_version_reply is not freed if function returns with success. Fixes: 942a48730faf ("usb: misc: legousbtower: Fix buffers on stack") Reported-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Maksim Salau <maksim.salau@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
942a4873 |
|
25-Apr-2017 |
Maksim Salau <maksim.salau@gmail.com> |
usb: misc: legousbtower: Fix buffers on stack Allocate buffers on HEAP instead of STACK for local structures that are to be received using usb_control_msg(). Signed-off-by: Maksim Salau <maksim.salau@gmail.com> Tested-by: Alfredo Rafael Vicente Boix <alviboi@gmail.com>; Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
9b181166 |
|
17-Mar-2017 |
Johan Hovold <johan@kernel.org> |
USB: legousbtower: refactor endpoint retrieval Use the new endpoint helpers to lookup the required interrupt-in and interrupt-out endpoints. Note that the descriptors are searched in reverse order to avoid any regressions. Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: legousb-devel@lists.sourceforge.net Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
5b5e0928 |
|
27-Feb-2017 |
Alexey Dobriyan <adobriyan@gmail.com> |
lib/vsprintf.c: remove %Z support Now that %z is standartised in C99 there is no reason to support %Z. Unlike %L it doesn't even make format strings smaller. Use BUILD_BUG_ON in a couple ATM drivers. In case anyone didn't notice lib/vsprintf.o is about half of SLUB which is in my opinion is quite an achievement. Hopefully this patch inspires someone else to trim vsprintf.c more. Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
7c0f6ba6 |
|
24-Dec-2016 |
Linus Torvalds <torvalds@linux-foundation.org> |
Replace <asm/uaccess.h> with <linux/uaccess.h> globally This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
2fae9e5a |
|
19-Sep-2016 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
usb: misc: legousbtower: Fix NULL pointer deference This patch fixes a NULL pointer dereference caused by a race codition in the probe function of the legousbtower driver. It re-structures the probe function to only register the interface after successfully reading the board's firmware ID. The probe function does not deregister the usb interface after an error receiving the devices firmware ID. The device file registered (/dev/usb/legousbtower%d) may be read/written globally before the probe function returns. When tower_delete is called in the probe function (after an r/w has been initiated), core dev structures are deleted while the file operation functions are still running. If the 0 address is mappable on the machine, this vulnerability can be used to create a Local Priviege Escalation exploit via a write-what-where condition by remapping dev->interrupt_out_buffer in tower_write. A forged USB device and local program execution would be required for LPE. The USB device would have to delay the control message in tower_probe and accept the control urb in tower_open whilst guest code initiated a write to the device file as tower_delete is called from the error in tower_probe. This bug has existed since 2003. Patch tested by emulated device. Reported-by: James Patrick-Evans <james@jmp-e.com> Tested-by: James Patrick-Evans <james@jmp-e.com> Signed-off-by: James Patrick-Evans <james@jmp-e.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
49d8ffab |
|
25-Aug-2016 |
Wolfram Sang <wsa-dev@sang-engineering.com> |
usb: misc: legousbtower: don't print on ENOMEM All kmalloc-based functions print enough information on failures. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
a131f41f |
|
11-Aug-2016 |
Wolfram Sang <wsa-dev@sang-engineering.com> |
usb: misc: legousbtower: don't print error when allocating urb fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
8f7e9473 |
|
06-Feb-2015 |
Nicholas Mc Guire <hofrat@osadl.org> |
USB: legotower: use msecs_to_jiffies for time conversion This is only an API consolidation and should make things more readable it replaces var * HZ / 1000 by msecs_to_jiffies(var). Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
803a5362 |
|
08-Jan-2014 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
usb: delete non-required instances of include <linux/init.h> None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
38726bf5 |
|
26-Jun-2013 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legotower: remove direct calls to printk() Use the pr_* calls instead, which are much more descriptive. Cc: Juergen Stuber <starblue@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
4dae9963 |
|
26-Jun-2013 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legotower: remove custom debug macro and module parameter Now that we don't use the dbg() macro, remove it, and the module parameter. Also fix up the "dump_data" function to properly use the dynamic debug core and the correct printk options, and don't call it twice per function, as the data doesn't change from the beginning and the end of the call. Cc: Juergen Stuber <starblue@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
fef526ca |
|
26-Jun-2013 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legousbtower: remove custom debug macro Don't use a custom debug macro for just one driver, instead rely on the in-kernel dynamic debugging logic, which can handle this much better. Cc: Juergen Stuber <starblue@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
d26f6e57 |
|
26-Jun-2013 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legotower: remove unneeded tracing macros Remove the unneeded tracing macros in this driver. The kernel has a built-in trace function that can be used if this is really still needed. Cc: Juergen Stuber <starblue@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
644034c2 |
|
20-Jul-2012 |
Dan Carpenter <dan.carpenter@oracle.com> |
USB: legousbtower.c: remove a bogus NULL check "udev" can't be NULL here. The debugging printk() makes static checkers complain when we dereference it later in the function inside the call to usb_rcvctrlpipe(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
9d974b2a |
|
20-Apr-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: legousbtower.c: remove err() usage err() was a very old USB-specific macro that I thought had gone away. This patch removes it from being used in the driver and uses dev_err() instead. CC: Juergen Stuber <starblue@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
2c9ede55 |
|
23-Jul-2011 |
Al Viro <viro@zeniv.linux.org.uk> |
switch device_get_devnode() and ->devnode() to umode_t * both callers of device_get_devnode() are only interested in lower 16bits and nobody tries to return anything wider than 16bit anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
#
65db4305 |
|
18-Nov-2011 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: convert drivers/usb/* to use module_usb_driver() This converts the drivers in drivers/usb/* to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Simon Arlott <cxacru@fire.lp0.eu> Cc: Duncan Sands <duncan.sands@free.fr> Cc: Matthieu CASTET <castet.matthieu@free.fr> Cc: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: Oliver Neukum <oliver@neukum.name> Cc: Juergen Stuber <starblue@users.sourceforge.net> Cc: Cesar Miquel <miquel@df.uba.ar> Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Michael Hund <mhund@ld-didactic.de> Cc: Zack Parsons <k3bacon@gmail.com> Cc: Melchior FRANZ <mfranz@aon.at> Cc: Tomoki Sekiyama <tomoki.sekiyama@gmail.com> Cc: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
29cc8897 |
|
23-Aug-2011 |
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
USB: use usb_endpoint_maxp() instead of le16_to_cpu() Now ${LINUX}/drivers/usb/* can use usb_endpoint_maxp(desc) to get maximum packet size instead of le16_to_cpu(desc->wMaxPacketSize). This patch fix it up Cc: Armin Fuerst <fuerst@in.tum.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: Johannes Erdfelt <johannes@erdfelt.com> Cc: Vojtech Pavlik <vojtech@suse.cz> Cc: Oliver Neukum <oliver@neukum.name> Cc: David Kubicek <dave@awk.cz> Cc: Johan Hovold <jhovold@gmail.com> Cc: Brad Hards <bhards@bigpond.net.au> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de> Cc: David Brownell <david-b@pacbell.net> Cc: David Lopo <dlopo@chipidea.mips.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Xie Xiaobo <X.Xie@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Jiang Bo <tanya.jiang@freescale.com> Cc: Yuan-hsin Chen <yhchen@faraday-tech.com> Cc: Darius Augulis <augulis.darius@gmail.com> Cc: Xiaochen Shen <xiaochen.shen@intel.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Ben Dooks <ben@simtec.co.uk> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: Herbert Pötzl <herbert@13thfloor.at> Cc: Arnaud Patard <arnaud.patard@rtp-net.org> Cc: Roman Weissgaerber <weissg@vienna.at> Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: Florian Floe Echtler <echtler@fs.tum.de> Cc: Christian Lucht <lucht@codemercs.com> Cc: Juergen Stuber <starblue@sourceforge.net> Cc: Georges Toth <g.toth@e-biz.lu> Cc: Bill Ryder <bryder@sgi.com> Cc: Kuba Ober <kuba@mareimbrium.org> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
5bd6e8b3 |
|
12-Jul-2010 |
Joe Perches <joe@perches.com> |
USB: misc: Remove unnecessary casts of private_data Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
f45ba776 |
|
05-Feb-2010 |
Joe Perches <joe@perches.com> |
USB: Convert concatenated __FILE__ to %s, __FILE__ Reduces string space a bit Neaten a macro redefine of dbg Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
3c02b1d7 |
|
14-Jan-2010 |
Oliver Neukum <oliver@neukum.org> |
USB: BKL removal: legousbtower BKL was not needed at all. Removed without replacement. Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
86266452 |
|
13-Jan-2010 |
Oliver Neukum <oliver@neukum.org> |
USB: Push BKL on open down into the drivers Straightforward push into the drivers to allow auditing individual drivers separately Signed-off-by: Oliver Neukum <oliver@neukum.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
33b9e162 |
|
10-Jan-2010 |
Németh Márton <nm127@freemail.hu> |
USB misc: make USB device id constant The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
d35b4ce1 |
|
01-Jul-2009 |
Oliver Neukum <oliver@neukum.org> |
USB: legousbtower: make poll notice disconnect poll needs to return an error if a device is disconnected - make poll check for device's presence - wake all waiters in disconnect Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
e454cea2 |
|
18-Sep-2009 |
Kay Sievers <kay.sievers@vrfy.org> |
Driver-Core: extend devnode callbacks to provide permissions This allows subsytems to provide devtmpfs with non-default permissions for the device node. Instead of the default mode of 0600, null, zero, random, urandom, full, tty, ptmx now have a mode of 0666, which allows non-privileged processes to access standard device nodes in case no other userspace process applies the expected permissions. This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
f7a386c5 |
|
30-Apr-2009 |
Kay Sievers <kay.sievers@vrfy.org> |
Driver Core: usb: add nodename support for usb drivers. This adds support for USB drivers to report their requested nodename to userspace. It also updates a number of USB drivers to provide the needed subdirectory and device name to be used for them. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
1b29a375 |
|
18-Aug-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: remove info() macro from usb/misc drivers USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
cdc97792 |
|
24-Feb-2008 |
Ming Lei <tom.leiming@gmail.com> |
USB: remove unnecessary type casting of urb->context urb->context code cleanup Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
441b62c1 |
|
03-Mar-2008 |
Harvey Harrison <harvey.harrison@gmail.com> |
USB: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
18bcbcfe |
|
11-Jan-2008 |
Daniel Walker <dwalker@mvista.com> |
USB: misc: legousbtower: semaphore to mutex The dev->sem conforms to mutex style usage. This patch converts it to use the struct mutex type, and new API. There is also a small style fix around this comment, /* unlock here as tower_delete frees dev */ Where I broke the line up to meet the 80 char limit. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
78663ecc |
|
25-Oct-2007 |
Oliver Neukum <oliver@neukum.org> |
USB: disconnect open race in legousbtower again, possible use after free due to touching intfdata without lock. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
64771a0f |
|
18-Jul-2007 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: misc: legousbtower: clean up urb->status usage This done in anticipation of removal of urb->status, which will make that patch easier to review and apply in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
d4ead16f |
|
22-May-2007 |
Alan Stern <stern@rowland.harvard.edu> |
USB: prevent char device open/deregister race This patch (as908) adds central protection in usbcore for the prototypical race between opening and unregistering a char device. The spinlock used to protect the minor-numbers array is replaced with an rwsem, which can remain locked across a call to a driver's open() method. This guarantees that open() and deregister() will be mutually exclusive. The private locks currently used in several individual drivers for this purpose are no longer necessary, and the patch removes them. The following USB drivers are affected: usblcd, idmouse, auerswald, legousbtower, sisusbvga/sisusb, ldusb, adutux, iowarrior, and usb-skeleton. As a side effect of this change, usb_deregister_dev() must not be called while holding a lock that is acquired by open(). Unfortunately a number of drivers do this, but luckily the solution is simple: call usb_deregister_dev() before acquiring the lock. In addition to these changes (and their consequent code simplifications), the patch fixes a use-after-free bug in adutux and a race between open() and release() in iowarrior. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
e63340ae |
|
08-May-2007 |
Randy Dunlap <randy.dunlap@oracle.com> |
header cleaning: don't include smp_lock.h when not used Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
f53510e8 |
|
08-Nov-2006 |
Mariusz Kozlowski <m.kozlowski@tuxland.pl> |
usb: legousbtower free kill urb cleanup Hello, - usb_free_urb() cleanup - usb_kill_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
240661c5 |
|
26-Oct-2006 |
Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> |
USB: legousbtower: Use usb_endpoint_* functions Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
7d12e780 |
|
05-Oct-2006 |
David Howells <dhowells@redhat.com> |
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
|
#
066202dd |
|
05-Aug-2006 |
Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> |
USB: Make file operations structs in drivers/usb const. Making structs const prevents accidental bugs and with the proper debug options they're protected against corruption. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
6ab3d562 |
|
30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h> Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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4186ecf8 |
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11-Jan-2006 |
Arjan van de Ven <arjan@infradead.org> |
[PATCH] USB: convert a bunch of USB semaphores to mutexes the patch below converts a bunch of semaphores-used-as-mutex in the USB code to mutexes Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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75318d2d |
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21-Nov-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: remove .owner field from struct usb_driver It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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d6e5bcf4 |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] devfs: Remove the mode field from usb_class_driver as it's no longer needed Also fixes all drivers that set this field, and removes some other devfs specfic USB logic. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/usb/class/usblp.c | 3 +-- drivers/usb/core/file.c | 19 ++++--------------- drivers/usb/image/mdc800.c | 3 +-- drivers/usb/input/aiptek.c | 2 +- drivers/usb/input/hiddev.c | 3 +-- drivers/usb/media/dabusb.c | 3 +-- drivers/usb/misc/auerswald.c | 3 +-- drivers/usb/misc/idmouse.c | 5 ++--- drivers/usb/misc/legousbtower.c | 5 ++--- drivers/usb/misc/rio500.c | 3 +-- drivers/usb/misc/sisusbvga/sisusb.c | 5 ----- drivers/usb/misc/usblcd.c | 9 ++++----- drivers/usb/usb-skeleton.c | 3 +-- include/linux/usb.h | 7 ++----- 14 files changed, 22 insertions(+), 51 deletions(-)
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093cf723 |
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03-May-2005 |
Steven Cole <elenstev@mesatop.com> |
[PATCH] USB: Spelling fixes for drivers/usb. Here are some spelling corrections for drivers/usb. cancelation -> cancellation succesful -> successful cancelation -> cancellation decriptor -> descriptor Initalize -> Initialize wierd -> weird Protocoll -> Protocol occured -> occurred successfull -> successful Procesing -> Processing devide -> divide Isochronuous -> Isochronous noticable -> noticeable Basicly -> Basically transfering -> transferring intialize -> initialize Incomming -> Incoming additionnal -> additional asume -> assume Unfortunatly -> Unfortunately retreive -> retrieve tranceiver -> transceiver Compatiblity -> Compatibility Incorprated -> Incorporated existance -> existence Ununsual -> Unusual Signed-off-by: Steven Cole <elenstev@mesatop.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1da177e4 |
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16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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