The new usb_control_msg_{send|recv}() API provides an improved way of
using usb_control_msg(). Using this, short reads/writes are considered
as errors, data can be used off the stack, and the need for the calling
function to create a raw usb pipe is eliminated.
This patch series aims to update existing instances of usb_control_msg()
in drivers/usb/misc/* to usb_control_msg_{send|recv}() appropriately, and
also update the return value checking mechanisms in place (if any), as
necessary so nothing breaks.
Changes in v3:
* idmouse, emi26 and emi62 are left unchanged, and are not updated.
-> since control transfers in idmouse are without a data stage, there's no
real advantage in using the new helper here.
-> in emi26, and emi62, FW_LOAD_SIZE = 1048 (> 1024). Thus, if we try to use the
new helpers, it will result in either build warnings, or memory being allocated.
* Link to v2:
https://lore.kernel.org/linux-usb/20201130013103.2580467-1-anant.thazhemadam@xxxxxxxxx/T/
Changes in v2:
* Buffer variables that were previously dynamically allocated are no
longer dynamically allocated unless they have a variable length
(since that threw a warning).
* Link to v1:
https://lore.kernel.org/linux-usb/20201129160612.1908074-1-anant.thazhemadam@xxxxxxxxx/
Anant Thazhemadam (12):
usb: misc: appledisplay: update to use the
usb_control_msg_{send|recv}() API
usb: misc: cypress_cy7c63: update to use usb_control_msg_recv()
usb: misc: cytherm: update to use usb_control_msg_recv()
usb: misc: ehset: update to use the usb_control_msg_{send|recv}() API
usb: misc: ezusb: update to use usb_control_msg_send()
usb: misc: iowarrior: update to use the usb_control_msg_{send|recv}()
API
usb: misc: isight_firmware: update to use usb_control_msg_send()
usb: misc: ldusb: update to use usb_control_msg_send()
usb: misc: lvstest: update to use the usb_control_msg_{send|recv}()
API
usb: misc: trancevibrator: update to use usb_control_msg_send()
usb: misc: usbsevseg: update to use usb_control_msg_send()
usb: misc: usbtest: update to use the usb_control_msg_{send|recv}()
API
drivers/usb/misc/appledisplay.c | 46 +++++------
drivers/usb/misc/cypress_cy7c63.c | 21 ++---
drivers/usb/misc/cytherm.c | 128 ++++++++++-------------------
drivers/usb/misc/ehset.c | 76 ++++++++---------
drivers/usb/misc/ezusb.c | 16 +---
drivers/usb/misc/iowarrior.c | 34 ++++----
drivers/usb/misc/isight_firmware.c | 30 +++----
drivers/usb/misc/ldusb.c | 8 +-
drivers/usb/misc/lvstest.c | 38 ++++-----
drivers/usb/misc/trancevibrator.c | 4 +-
drivers/usb/misc/usbsevseg.c | 60 ++++----------
drivers/usb/misc/usbtest.c | 69 +++++++---------
12 files changed, 198 insertions(+), 332 deletions(-)
--
2.25.1
