Hi,
These patches clean up the usb serial subsystem by removing unnecessary code
and duplicated structures, and finally rewrites the generic read
implementation to use multiple read urbs (which can give a rough 50%
throughput increase).
A few comments to the patches:
USB: serial: remove changelogs and old todo entries
I decided to remove the remaining old changelog entries from the
tree, but this one could be skipped if it's considered worth keeping them
around (could always be retrieved through git otherwise).
USB: omninet: fix write_room
This one is a bug fix and makes you wonder whether anyone uses this driver
as the bug was introduced in 2005...
USB: omninet: clean up write-urb busy handling
USB: cyberjack: clean up write-urb busy handling
USB: keyspan_pda: clean up write-urb busy handling
USB: serial: remove write_urb_busy field from usb_serial_port
These patches removes the dedicated write_urb_busy flag from
usb_serial_port by using the free write urb mask instead.
USB: mos7720: remove incorrect read-urb check
USB: mos7720: remove unused code
USB: serial: remove unnecessary reinitialisations of urb->dev
USB: serial: remove unnecessary reinitialisations of urb fields
USB: serial: remove unnecessary bulk-urb re-fills
USB: usb_debug: fix indentation
Various clean ups which basically remove code based on no longer valid
assumptions which could cause some confusion.
USB: usb_debug: use process_read_urb
USB: pl2303: return errors from usb_submit_urb in open
USB: pl2302: clean up error handling in open
USB: pl2303: use usb_serial_generic_open
USB: serial: add support for multiple read urbs
The first four patches replace all driver calls to
usb_serial_generic_submit_read_urb which is then in turn replaced by a new
function usb_serial_generic_submit_read_urbs in the final patch which adds
multi-read urb support.
Thanks,
Johan
Johan Hovold (18):
USB: serial: remove changelogs and old todo entries
USB: omninet: fix write_room
USB: omninet: clean up write-urb busy handling
USB: cyberjack: clean up write-urb busy handling
USB: keyspan_pda: clean up write-urb busy handling
USB: serial: remove write_urb_busy field from usb_serial_port
USB: mos7720: remove incorrect read-urb check
USB: mos7720: remove unused code
USB: serial: remove unnecessary reinitialisations of urb->dev
USB: serial: remove unnecessary reinitialisations of urb fields
USB: serial: remove unnecessary bulk-urb re-fills
USB: serial: reuse generic write urb and bulk-out buffer
USB: usb_debug: fix indentation
USB: usb_debug: use process_read_urb
USB: pl2303: return errors from usb_submit_urb in open
USB: pl2302: clean up error handling in open
USB: pl2303: use usb_serial_generic_open
USB: serial: add support for multiple read urbs
drivers/usb/serial/ChangeLog.history | 730 ---------------------------------
drivers/usb/serial/belkin_sa.c | 43 --
drivers/usb/serial/ch341.c | 1 -
drivers/usb/serial/cyberjack.c | 33 +--
drivers/usb/serial/cypress_m8.c | 29 --
drivers/usb/serial/digi_acceleport.c | 227 +----------
drivers/usb/serial/garmin_gps.c | 9 -
drivers/usb/serial/generic.c | 83 +++-
drivers/usb/serial/io_edgeport.c | 3 -
drivers/usb/serial/io_ti.c | 28 +--
drivers/usb/serial/ipaq.c | 34 --
drivers/usb/serial/ir-usb.c | 32 --
drivers/usb/serial/keyspan.c | 90 ----
drivers/usb/serial/keyspan_pda.c | 66 +---
drivers/usb/serial/kobil_sct.c | 25 --
drivers/usb/serial/mct_u232.c | 46 --
drivers/usb/serial/mos7720.c | 18 -
drivers/usb/serial/mos7840.c | 4 -
drivers/usb/serial/omninet.c | 51 +---
drivers/usb/serial/opticon.c | 1 -
drivers/usb/serial/oti6858.c | 9 -
drivers/usb/serial/pl2303.c | 17 +-
drivers/usb/serial/sierra.c | 1 -
drivers/usb/serial/symbolserial.c | 1 -
drivers/usb/serial/ti_usb_3410_5052.c | 13 +-
drivers/usb/serial/usb-serial.c | 73 ++--
drivers/usb/serial/usb_debug.c | 13 +-
drivers/usb/serial/whiteheat.c | 58 ---
include/linux/usb/serial.h | 11 +-
29 files changed, 142 insertions(+), 1607 deletions(-)
delete mode 100644 drivers/usb/serial/ChangeLog.history
--
1.7.7
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