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The SSP2 controller has extra endpoint state preserve bit (ESP) which
setting causes that endpoint state will be preserved during
Halt Endpoint command. It is used only for EP0.
Without this bit the Command Verifier "TD 9.10 Bad Descriptor Test"
failed.
Setting this bit doesn't have any impact for SSP controller.
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/PH7PR07MB95382CCD50549DABAEFD6156DD7CA@PH7PR07MB9538.namprd07.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is a general misunderstanding amongst engineers that {v}snprintf()
returns the length of the data *actually* encoded into the destination
array. However, as per the C99 standard {v}snprintf() really returns
the length of the data that *would have been* written if there were
enough space for it. This misunderstanding has led to buffer-overruns
in the past. It's generally considered safer to use the {v}scnprintf()
variants in their place (or even sprintf() in simple cases). So let's
do that.
The uses in this file all seem to assume that data *has been* written!
Link: https://lwn.net/Articles/69419/
Link: https://github.com/KSPP/linux/issues/105
Cc: Pawel Laszczak <pawell@cadence.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20231130105459.3208986-3-lee@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Patch removes TRB_FLUSH_ENDPOINT command from driver.
This command is not supported by controller and
USBSSP returns TRB Error completion code for it.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20231026073737.165450-1-pawell@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Variable ret in function cdnsp_decode_trb is initialized but not
used. To fix this compiler warning patch adds checking whether the
data buffer has not been overflowed.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20220112053237.14309-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Patch fixes all sparse warnings in cdsnp driver.
It fixes the following warnings:
cdnsp-ring.c:1441: warning: incorrect type in assignment
cdnsp-ring.c:1444: warning: restricted __le32 degrades to integer
cdnsp-ring.c:2200: warning: dubious: x | !y
cdnsp-gadget.c:501: warning: incorrect type in assignment
cdnsp-gadget.c:504: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:507: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:508: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:509: warning: invalid assignment: |=
cdnsp-gadget.c:510: warning: cast from restricted __le32
cdnsp-gadget.c:558: warning: incorrect type in assignment
cdnsp-gadget.c:561: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:570: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:1571: warning: incorrect type in argument 1
cdnsp-gadget.c:1602: warning: restricted __le32 degrades to integer
cdnsp-gadget.c:1760: warning: incorrect type in assignment
cdnsp-gadget.c:1762: warning: incorrect type in assignment
cdnsp-gadget.c:1763: warning: incorrect type in assignment
cdnsp-gadget.c:1764: warning: incorrect type in assignment
cdnsp-gadget.c:1765: warning: incorrect type in assignment
cdnsp-gadget.c:1766: warning: incorrect type in assignment
cdnsp-gadget.c:1767: warning: incorrect type in assignment
cdnsp-gadget.c:458: warning: cast truncates bits from constant value
(ffffffff07ffffff becomes 7ffffff)
cdnsp-gadget.c:666: warning: cast truncates bits from constant value
(ffffffff07ffffff becomes 7ffffff)
cdnsp-mem.c:762: warning: incorrect type in assignment
cdnsp-mem.c:763: warning: incorrect type in assignment
cdnsp-mem.c:928: warning: cast from restricted __le16
cdnsp-mem.c:1187: warning: incorrect type in assignment
cdnsp-mem.c:1191: warning: incorrect type in assignment
cdnsp-ep0.c:142: warning: incorrect type in assignment
cdnsp-ep0.c:144: warning: restricted __le32 degrades to integer
cdnsp-ep0.c:147: warning: restricted __le32 degrades to integer
cdnsp-ep0.c:148: warning: restricted __le32 degrades to integer
cdnsp-ep0.c:179: warning: incorrect type in argument 1
cdnsp-ep0.c:311: warning: incorrect type in argument 1
cdnsp-ep0.c:469: warning: incorrect type in assignment
cdnsp-trace.h:611:1: warning: cast from restricted __le32
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Patch adds the series of tracepoints that can be used for
debugging issues detected in driver.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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