nl80211 provides the NL80211_SCAN_FLAG_RANDOM_ADDR for every scan
request that should be randomized; the absence of such a flag means we
should not randomize. However, mwifiex was stashing the latest
randomization request and *always* using it for future scans, even those
that didn't set the flag.

Let's zero out the randomization info whenever we get a scan request
without NL80211_SCAN_FLAG_RANDOM_ADDR. I'd prefer to remove
priv->random_mac entirely (and plumb the randomization MAC properly
through the call sequence), but the spaghetti is a little difficult to
unravel here for me.

Fixes: c2a8f0ff ("mwifiex: support random MAC address for scanning")
Cc: <stable@vger.kernel.org> # 4.9+
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We have to use start port, for TX/RX of single packet,
instead of current aggregating port. This will fix SDIO
CMD53(TX/RX) returning -ETIMEDOUT and halting the data path.

Fixes: 0cb52aac ("mwifiex: do not set multiport flag for tx/rx single packet")
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When IEEE80211_CHAN_RADAR is set by cfg80211, passive scan must be
performed. In mwifiex,active scan is performed even though flag is
set from cfg80211. mwifiex_reg_apply_radar_flags() function added
in this patch correctly uses radar flag.
Signed-off-by: NKarthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In mwifiex,IEs such as supported channels, supported operating classes
20/40 BSS COexistence are missing and also extra QOS capabilities IE
is added during TDLS discovery response, TDLS setup request and
TDLS setupresponse.
This patch adds require IEs and also removes extra IE.
Signed-off-by: NKarthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When resetting the device, we take a synchronous firmware-loading code
path, which borrows a lot from the asynchronous path used at probe time.
We don't catch errors correctly though, which means that in the PCIe
driver, we may try to dereference the 'adapter' struct after
mwifiex_fw_dpc() has freed it. See this (erronous) print in
mwifiex_pcie_reset_notify():

	mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__);

Let's instead refactor the synchronous (or "!req_fw_nowait") path so
that we propagate errors and handle them properly.

This fixes a use-after-free issue in the PCIe driver, as well as a
misleading debug message ("successful"). It looks like the SDIO driver
doesn't have these problems, since it doesn't do anything after
mwifiex_reinit_sw().

Fixes: 4c5dae59 ("mwifiex: add PCIe function level reset support")
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If we fail to reinit the FW when resetting the device (in the
synchronous version of mwifiex_init_hw_fw() -> mwifiex_fw_dpc()),
mwifiex_fw_dpc() will tear down the interface and free up the adapter.
But we don't actually check for all failure cases of mwifiex_fw_dpc(),
so some of them fall through and dereference adapter->fw_done with a
freed adapter, causing a use-after-free bug.

In any case, mwifiex_fw_dpc() will always signal FW completion -- in the
error OR success case -- so at best, this was repeat work. Let's not do
it.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Chip goes into low power state when this feature is enabled.
This was already enabled for SDIO and PCIe interface based
chipsets.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

USB firmware added support for sending command response/event through
interrupt endpoint, to enhance RX throughput. Added corresponding changes
required to support this feature. This change takes care of backward
compatibility with older firmware.
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We observed a SHUTDOWN command timeout during reboot stress test due to
a corner case firmware bug. It can lead to either a use-after-free +
OOPS (on either the adapter structure, or the 'card' structure) or an
abort (where, e.g., the PCI device is "disabled" before we're done
dumping the FW).

We can avoid this by canceling/flushing the FW dump work:

(a) after we've terminated all other work queues (e.g., for processing
    commands which could time out)
(b) after we've disabled all interrupts (which could also queue more
    work for us)
(c) after we've unregistered the netdev and wiphy structures (and
    implicitly, and debugfs entries which could manually trigger FW dumps)
(d) before we've actually disabled the device (e.g.,
    pci_device_disable())

Altogether, this means no card->work will be scheduled if we sync at
a point that satisfies the above. This can be done at the beginning of
the .cleanup_if() callback.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Application triggers periodic background scans when device is connected.
We will scan less number of channels per scan command so that data
traffic won't get affected.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Using the accessor function e.g. get_unaligned_le32 instead of
le32_to_cpu to avoid the unaligned access. This is for the
architectures that don't handle the unaligned memory access
Signed-off-by: NDevidas Puranik <devidas@marvell.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Synopsys' ARCompact architecture does not support loading from or
storing values to unaligned memory locations. We saw a series of
misaligned access exceptions on ARC. To work around this issue, we bulk
replaced le16_to_cpu and le32_to_cpu with get_unaligned_le16 and
get_unaligned_le32, respectively. We also added le16_unaligned_add_cpu
which is similar to le16_add_cpu but works with unaligned values.
Signed-off-by: NDaniel Mentz <danielmentz@google.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Adding qualifier "__packed" indicates that no padding should be
performed on the qualified object for alignment.
This patch adds qualifier __packed to the required firmware
structures in mwifiex driver.
Signed-off-by: NKarthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We shouldn't be printing a kernel pointer as a decimal integer. But we
really shouldn't be printing this case at all; we should never get here
with NULL drvdata. We've eliminated this unnecessary conditional in
several other places, so kill it here too.

Similarly, there's no need to check for '!pdev'; we are guaranteed to
have a real device here.

And finally, use dev_err() instead of pr_err().

This yields (for failed PCIe resets):

[   68.286586] mwifiex_pcie 0000:01:00.0: mwifiex_pcie_reset_notify: adapter structure is not valid

instead of:

[   82.932658] mwifiex_pcie: mwifiex_pcie_reset_notify: Card or adapter structure is not valid (-270880688088)
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currrently we are disabling this wake irq after receiving it. If this
happens before we finish suspend and the pm event check is disabled,
the system will continue suspending, and this irq would not work again.

We may need to abort system suspend to avoid that.
Signed-off-by: NJeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We manually init wakeup info, but we don't detach it on device removal.
This means that if we (for example) rmmod + modprobe the driver, the
device framework might return -EEXIST the second time, and we'll
complain in the logs:

[  839.311881] mwifiex_pcie 0000:01:00.0: fail to init wakeup for mwifiex

AFAICT, there's no other negative effect.

But we can fix this by disabling wakeup on remove, similar to what a few
other drivers do (e.g., the power supply framework).

This code (and bug) has existed on SDIO for a while, but it got moved
around and enabled for PCIe with commit 853402a0 ("mwifiex: Enable
WoWLAN for both sdio and pcie").
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The mwifiex_dbg() log handler utilizes the struct device in
adapter->dev. Without it, it decides not to print anything.

As of commit 2e02b581 ("mwifiex: Allow mwifiex early access to device
structure"), we started assigning that pointer only after we finished
mwifiex_register() -- this effectively neuters any mwifiex_dbg() logging
done before this point.

Let's move the device assignment into mwifiex_register().

Fixes: 2e02b581 ("mwifiex: Allow mwifiex early access to device structure")
Cc: Rajat Jain <rajatja@google.com>
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When PCIe FLR support was added, much of the remove/release code for
PCIe was migrated to ->down_dev(), but ->down_dev() is never called for
device removal. Let's refactor the cleanup to be done in both cases.

Also, drop the comments above mwifiex_cleanup_pcie(), because they were
clearly wrong, and it's better to have clear and obvious code than to
detail the code steps in comments anyway.

Fixes: 4c5dae59 ("mwifiex: add PCIe function level reset support")
Cc: <stable@vger.kernel.org>
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fix typos and add the following to the scripts/spelling.txt:

  swith||switch
  swithable||switchable
  swithed||switched
  swithing||switching

While we are here, fix the "update" to "updates" in the touched hunk in
drivers/net/wireless/marvell/mwifiex/wmm.c.

Link: http://lkml.kernel.org/r/1481573103-11329-2-git-send-email-yamada.masahiro@socionext.comSigned-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

If we don't have an out-of-band wakeup IRQ configured through DT (as
most platforms don't), then we fall out of this function with
'irq_wakeup == 0'. Other code (e.g., mwifiex_disable_wake() and
mwifiex_enable_wake()) treats 'irq_wakeup >= 0' as a valid IRQ, and so
we end up calling {enable,disable}_irq() on IRQ 0.

That seems bad, so let's not do that.

Same problem as fixed in this patch:

https://patchwork.kernel.org/patch/9531693/
[PATCH v2 2/3] btmrvl: set irq_bt to -1 when failed to parse it

with the difference that:
(a) this one is actually a regression and
(b) this affects both device tree and non-device-tree systems

While fixing the regression, also drop the verbosity on the parse
failure, so we don't see this when a DT node is present but doesn't have
an interrupt property (this is perfectly legal):

[   21.999000] mwifiex_pcie 0000:01:00.0: fail to parse irq_wakeup from device tree

Fixes: 853402a0 ("mwifiex: Enable WoWLAN for both sdio and pcie")
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Acked-by: NRajat Jain <rajatja@google.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

It is a relatively common idiom (8 instances) to first look up an IDR
entry, and then remove it from the tree if it is found, possibly doing
further operations upon the entry afterwards.  If we change idr_remove()
to return the removed object, all of these users can save themselves a
walk of the IDR tree.
Signed-off-by: NMatthew Wilcox <mawilcox@microsoft.com>

Update the drivers to pass the RSSI level as a cfg80211_cqm_rssi_notify
parameter and pass this value to userspace in a new nl80211 attribute.
This helps both userspace and also helps in the implementation of the
multiple RSSI thresholds CQM mechanism.

Note for marvell/mwifiex I pass 0 for the RSSI value because the new
RSSI value is not available to the driver at the time of the
cfg80211_cqm_rssi_notify call, but the driver queries the new value
immediately after that, so it is actually available just a moment later
if we wanted to defer caling cfg80211_cqm_rssi_notify until that moment.
Without this, the new cfg80211 code (patch 3) will call .get_station
which will send a duplicate HostCmd_CMD_RSSI_INFO command to the hardware.
Signed-off-by: NAndrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

This patch fixes the issue specific to AP. AP is started with WEP
security and external station is connected to it. Data path works
in this case. Now if AP is restarted with WPA/WPA2 security,
station is able to connect but ping fails.

Driver skips the deletion of WEP keys if interface type is AP.
Removing that redundant check resolves the issue.

Fixes: e57f1734 ("mwifiex: add key material v2 support")
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This driver doesn't use mac80211, so it shouldn't include mac80211.h,
include only the necessary cfg80211.h instead.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

On some platforms, driver is unable read sleep cookie signature even
if firmware has written it through DMA. The problem is fixed by using
pci_dma_sync_single* APIs while reading DMA buffer shared with firmware.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Sleep confirm is a special command for which "adapter->cur_cmd" pointer
is not set. When it's response is received, host writes SLEEP confirm done
to a register. Firmware will perform DMA for writing sleep cookie signature
on same buffer after this.

Let's not immediately call mwifiex_unmap_pci_memory() for this special
command. Unmapping will be done when firmware completes writing sleep
cookie signature.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Marvell folks tell me this is a debugging event that the driver doesn't
need to handle, but on 8997 w/ firmware 16.68.1.p97, I see several of
these sorts of messages at (for instance) boot time:

[   13.825848] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   14.838561] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   14.850397] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   32.529923] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63

Let's handle this "event" with a much lower verbosity.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In mwifiex_delay_for_sleep_cookie(), we're looping and waiting for the
PCIe endpoint to write a magic value back to memory, to signal that it
has finished going to sleep. We're not letting the compiler know that
this might change underneath our feet though. Let's do that, for good
hygiene.

I'm not aware of this fixing any concrete problems. I also give no
guarantee that this loop is actually correct in any other way, but at
least this looks like an improvement to me.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The following sequence occurs when using IEEE power-save on 8997:
(a) driver sees SLEEP event
(b) driver issues SLEEP CONFIRM
(c) driver recevies CMD interrupt; within the interrupt processing loop,
    we do (d) and (e):
(d) wait for FW sleep cookie (and often time out; it takes a while), FW
    is putting card into low power mode
(e) re-check PCIE_HOST_INT_STATUS register; quit loop with 0 value

But at (e), no one actually signaled an interrupt (i.e., we didn't check
adapter->int_status). And what's more, because the card is going to
sleep, this register read appears to take a very long time in some cases
-- 3 milliseconds in my case!

Now, I propose that (e) is completely unnecessary. If there were any
additional interrupts signaled after the start of this loop, then the
interrupt handler would have set adapter->int_status to non-zero and
queued more work for the main loop -- and we'd catch it on the next
iteration of the main loop.

So this patch drops all the looping/re-reading of PCIE_HOST_INT_STATUS,
which avoids the problematic (and slow) register read in step (e).

Incidentally, this is a very similar issue to the one fixed in commit
ec815dd2 ("mwifiex: prevent register accesses after host is
sleeping"), except that the register read is just very slow instead of
fatal in this case.

Tested on 8997 in both MSI and (though not technically supported at the
moment) MSI-X mode.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Depending on system factors (e.g., the PCIe link PM state), the first
read to wake up the Wifi firmware can take a long time. There is no
reason to use a (blocking, non-posted) read at this point, so let's just
use a write instead. Write vs. read doesn't matter functionality-wise --
it's just a dummy operation. But let's make sure to re-write with the
correct "ready" signature, since we check for that in other parts of the
driver.

This has been shown to decrease the time spent blocking in this function
on RK3399.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We already ensure 64 bytes alignment and add padding if required
during skb_aggr allocation.

Alignment and padding in mwifiex_11n_form_amsdu_txpd() is redundant.
We may end up accessing more data than allocated size with this.

This patch fixes following issue by removing redundant padding.

[  370.241338] skbuff: skb_over_panic: text:ffffffffc046946a len:3550
put:72 head:ffff880000110000 data:ffff8800001100e4 tail:0xec2 end:0xec0 dev:<NULL>
[  370.241374] ------------[ cut here ]------------
[  370.241382] kernel BUG at net/core/skbuff.c:104!
  370.244032] Call Trace:
[  370.244041]  [<ffffffff8c3df5ec>] skb_put+0x44/0x45
[  370.244055]  [<ffffffffc046946a>]
mwifiex_11n_aggregate_pkt+0x1e9/0xa50 [mwifiex]
[  370.244067]  [<ffffffffc0467c16>] mwifiex_wmm_process_tx+0x44a/0x6b7
[mwifiex]
[  370.244074]  [<ffffffffc0411eb8>] ? 0xffffffffc0411eb8
[  370.244084]  [<ffffffffc046116b>] mwifiex_main_process+0x476/0x5a5
[mwifiex]
[  370.244098]  [<ffffffffc0461298>] mwifiex_main_process+0x5a3/0x5a5
[mwifiex]
[  370.244113]  [<ffffffff8be7e9ff>] process_one_work+0x1a4/0x309
[  370.244123]  [<ffffffff8be7f4ca>] worker_thread+0x20c/0x2ee
[  370.244130]  [<ffffffff8be7f2be>] ? rescuer_thread+0x383/0x383
[  370.244136]  [<ffffffff8be7f2be>] ? rescuer_thread+0x383/0x383
[  370.244143]  [<ffffffff8be83742>] kthread+0x11c/0x124
[  370.244150]  [<ffffffff8be83626>] ? kthread_parkme+0x24/0x24
[  370.244157]  [<ffffffff8c4da1ef>] ret_from_fork+0x3f/0x70
[  370.244168]  [<ffffffff8be83626>] ? kthread_parkme+0x24/0x24

Fixes: 84b313b3 ("mwifiex: make tx packet 64 byte DMA aligned")
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Function lbs_cmd_802_11_sleep_params() always return 0, even if the call
to lbs_cmd_with_response() fails. In this case, the parameter @sp will
keep uninitialized. Because the return value is 0, its caller (say
lbs_sleepparams_read()) will not detect the error, and will copy the
uninitialized stack memory to user sapce, resulting in stack information
leak. To avoid the bug, this patch returns variable ret (which takes
the return value of lbs_cmd_with_response()) instead of 0.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188451Signed-off-by: NPan Bian <bianpan2016@163.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Similar to commit fcd2042e ("mwifiex: printk() overflow with 32-byte
SSIDs"), we failed to account for the existence of 32-char SSIDs in our
debugfs code. Unlike in that case though, we zeroed out the containing
struct first, and I'm pretty sure we're guaranteed to have some padding
after the 'ssid.ssid' and 'ssid.ssid_len' fields (the struct is 33 bytes
long).

So, this is the difference between:

  # cat /sys/kernel/debug/mwifiex/mlan0/info
  ...
  essid="0123456789abcdef0123456789abcdef "
  ...

and the correct output:

  # cat /sys/kernel/debug/mwifiex/mlan0/info
  ...
  essid="0123456789abcdef0123456789abcdef"
  ...

Fixes: 5e6e3a92 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Checking the firmware status from PCIe register only works
if the register is available, otherwise we end up with
random behavior:

drivers/net/wireless/marvell/mwifiex/pcie.c: In function 'mwifiex_pcie_remove':
drivers/net/wireless/marvell/mwifiex/pcie.c:585:5: error: 'fw_status' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This makes sure we treat the absence of the register as a failure.

Fixes: 045f0c1b ("mwifiex: get rid of global user_rmmod flag")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch moves sdio_work to card structure, in this way we can get
adapter structure in the work, so save_adapter won't be needed.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

__mwifiex_sdio_remove helper is not needed after
our enhancements in SDIO card reset.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Commit b4336a28 ("mwifiex: sdio: reset adapter using mmc_hw_reset")
introduces a simple sdio card reset solution based on card remove and
re-probe. This solution has proved to be vulnerable, as card and
adapter structures are not protected, concurrent access will result in
kernel panic issues.

Let's reuse PCIe FLR's functions for SDIO reset to avoid freeing and
reallocating adapter and card structures.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

adapter and card variables don't get freed during PCIe function level
reset. "adapter->ext_scan" variable need not be re-initialized.
fw_name and tx_buf_size initialization is moved to pcie specific code
so that mwifiex_reinit_sw() can be used by SDIO.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch gets rid of mwifiex_do_flr. We will call
mwifiex_shutdown_sw() and mwifiex_reinit_sw() directly.
These two general purpose functions will be useful for
sdio card reset handler.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

After user_rmmod global flag removal, *_init_module() and
*_cleanup_module() have become just a wrapper functions.
We will get rid of them with the help of module_*_driver() macros.

For pcie, existing ".init_if" handler has same name as what
module_pcie_driver() macro will create. Let's rename it to
avoid conflict.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>