We mistakenly allocate space for too many entries in the
scatter-gather table of multi buffer egress frames.

While it doesn't have a negative impact from a functional
point of view, it wastes resources so fix it.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Cleanup code in free_tx_fd() that deals with S/G frames:
- remove local variables that aren't really needed
- in the frame sw annotation area, store the actual SG table
buffer size, which is needed on free, rather then recompute
it based on number of S/G entries
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Newer MC versions allow us to change link settings while the
interface is up. Only check interface status if we are using
an old version.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The DPAA2 Ethernet driver assumes the DPNI objects that it
uses to build network interfaces have a minimum supported
API version, but until now it did nothing to enforce this
requirement.

Add a check at probe time to make sure the DPNI object is
compatible with the set of MC commands we intend to use
on it.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Structure dpaa2_fas is naturally aligned, so no need to use
the __packed attribute explicitly.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove dpio_id field in struct dpaa2_eth_channel, which wasn't
used anywhere in the code.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Let the driver remove() function print an informative message
after it finishes removing the network interface, not at an
arbitrary point during cleanup.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For the link state interrupt, we used a dummy non-threaded
irq handler, which had the same implementation as the generic
irq_default_primary_handler() function.

Give up on using our own irq handler and let the kernel use
the generic one instead.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch check: PARENTHESIS_ALIGNMENT
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch warning: BRACES
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch error: CODE_IDENT
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch error: ASSIGN_IN_IF by adding an inner if in the else
path, this also avoids calling vchan_find_desc when not needed.
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch error: OPEN_BRACE
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch error: SPACING
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch error: POINTER_LOCATION
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The handling of hostif_infrastructure_set_request_t and
hostif_infrastructure_set2_request_t is identical, with the exception
of the event type value.  Merge the two structs so they can be handled
by a single function ('hostif_infrastructure_set_request').
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Some of the code for reading IEs is replicated multiple times in the
switch statement for get_ap_information().  Factor that code out into
read_ie().
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Instead of using memcmp() to directly compare BSSIDs, use
ether_addr_equal() from 'linux/etherdevice.h'.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The AUTH_TYPE_OPEN_SYSTEM and AUTH_TYPE_SHARED_KEY #define lines
are duplicated in ks_hostif.h.  Replace them both with one set of
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Most of the request structures defined in ks_hostif.h have common
members:
* __le16 phy_type;
* __le16 cts_mode;
* __le16 scan_type;
* __le16 capability;
* struct rate_set16_t rate_set;

Factor out these members into a common substructure of type
'hostif_request_t'.  This allows a large portion of the request
initialization code in ks_hostif.c to be factored out into the
'init_request' function.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There are several instances where comments are spaced so far to the
right they cause the line to go over the 80 character limit.  Move
these comments to above the statements they describe instead.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no reason for comment describing the BSSID check for loop
to be spaced so far to the right.  Move it above the for loop.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 gotos in error handling paths branch to the wrong label.
Fix it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This is a patch to the cb_pcidas64.c file that fixes up a multiple line
dereference warning found by the checkpatch.pl tool.
Signed-off-by: Jian Zhang <kernel@ubicomp.com.au>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

`external_ai_queue_in_use()` is supposed to return 1 if the external
channel sequencer is in use by an AI command, else return 0.  If the
"read" subdevice (which is the AI subdevice) is not busy then no AI
command is running so the external channel sequencer is not in use, so
the function should return 0.  Unfortunately, the function's "read"
subdevice busy test is inverted, so the function always returns 0 when
the "read" subdevice is busy.  Worse, if the "read" subdevice is
not busy the subsequent call to `use_internal_queue_6xxx()` results in a
null pointer dereference if a previous AI command used a channel list
with a length greater than 1.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit f5f3a2c6 ("staging: comedi: cb_pcidas64: change
params to external_ai_queue_in_use()").  The
`external_ai_queue_in_use()` was being called from `ao_cmd()` with
pointers to the "write" subdevice and AO command, but is supposed to
check whether the external AI queue is currently in use by the "read"
subdevice and AI command.  In fact, the return value always indicated
that the external AI queue was not in use in this case (because the AO
command's channel list is sequential), so was fairly useless.  (However,
even before the reverted commit, the logic in
`external_ai_queue_in_use()` was wrong.  That will be corrected in a
subsequent commit.)
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The userspace support for fsl-mc requires a fsl_mc_allocator
cleanup function. Add the needed function.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The "struct mc_command" is a very generic name for a global
kernel structure. Change its name in "struct fsl_mc_command".
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Trivial fix to spelling mistake in dev_err message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: f079b640 ("staging: mt7621-eth: add gigabit switch driver (GSW)")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In case of error, the function of_phy_connect() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Fixes: e3cbf478 ("staging: mt7621-eth: add the drivers core files")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: e3cbf478 ("staging: mt7621-eth: add the drivers core files")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes the following sparse warning:

drivers/staging/mt7621-gpio/gpio-mt7621.c:47:3: warning:
 symbol 'gc_map' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Refactored the function `XGIfb_search_refresh_rate` by removing a level
of `if...else` block nesting. Removed unnecessary parantheses. Removed
potential bug of array underflow.
Signed-off-by: Pratik Jain <pratik.jain0509@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Change typedef enum to enum. Issue found with checkpatch.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Rename temporary local variable and add required blank line.

Fixes checkpatch warning:

  WARNING: Missing a blank line after declarations
Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

missing a blank line after declaration checkpatch warnings.
Issue found by checkpatch.pl
Signed-off-by: Paul McQuade <paulmcquad@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Used checkpatch.pl to clean up spaces around
for statements to make it easier to read
Signed-off-by: Paul McQuade <paulmcquad@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unnecessary parentheses highlighted by checkpatch.pl
Signed-off-by: Paul McQuade <paulmcquad@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

C standard guarantees that:
global and static variables will be implicitly initialized to 0 or NULL
if no explicit initializer is given.
Signed-off-by: Paul McQuade <paulmcquad@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>