usb: xhci: clean up error_bitmask usage
authorLu Baolu <baolu.lu@linux.intel.com>
Fri, 11 Nov 2016 13:13:25 +0000 (15:13 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 14 Nov 2016 09:18:22 +0000 (10:18 +0100)
commitf4c8f03ca31a9cf4c122780ea693d145658ba397
tree860dd27940572964fa2d680e81f20b408cd472a9
parent2a72126de1bb08594246a96347f7527bbef7e2df
usb: xhci: clean up error_bitmask usage

In xhci_handle_event(), when errors are detected, driver always sets
a bit in error_bitmask (one member of the xhci private driver data).
That means users have to retrieve and decode the value of error_bitmask
in xhci private driver data if they want to know whether those erros
ever happened in xhci_handle_event(). Otherwise, those errors are just
ignored silently.

This patch cleans up this by replacing the setting of error_bitmask
with the kernel print functions, so that users can easily check and
report the errors happened in xhci_handle_event().

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/xhci-ring.c
drivers/usb/host/xhci.h