linux-toradex.git/drivers/ssb/pci.c, branch v5.3-rc1

drivers: Remove explicit invocations of mmiowb()

2019-04-08T11:01:02+00:00

mmiowb() is now implied by spin_unlock() on architectures that require
it, so there is no reason to call it from driver code. This patch was
generated using coccinelle:

	@mmiowb@
	@@
	- mmiowb();

and invoked as:

$ for d in drivers include/linux/qed sound; do \
spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done

NOTE: mmiowb() has only ever guaranteed ordering in conjunction with
spin_unlock(). However, pairing each mmiowb() removal in this patch with
the corresponding call to spin_unlock() is not at all trivial, so there
is a small chance that this change may regress any drivers incorrectly
relying on mmiowb() to order MMIO writes between CPUs using lock-free
synchronisation. If you've ended up bisecting to this commit, you can
reintroduce the mmiowb() calls using wmb() instead, which should restore
the old behaviour on all architectures other than some esoteric ia64
systems.

Acked-by: Linus Torvalds 
Signed-off-by: Will Deacon

ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG

2018-08-09T15:47:47+00:00

Use the standard WARN_ON instead.
If a small kernel is desired, WARN_ON can be disabled globally.

Also remove SSB_DEBUG. Besides WARN_ON it only adds a tiny debug check.
Include this check unconditionally.

Signed-off-by: Michael Buesch 
Signed-off-by: Kalle Valo

ssb: Remove home-grown printk wrappers

2018-08-09T15:45:50+00:00

Replace the ssb printk wrappers by standard print helpers.
Also remove SSB_SILENT. Nobody should use it anyway.

Originally submitted by Joe Perches .
Modified to add dev_... based printks.

Signed-off-by: Michael Buesch 
Tested-by: Michael Buesch 
Cc: Joe Perches 
Signed-off-by: Kalle Valo

ssb: Fix error routine when fallback SPROM fails

2016-11-17T06:49:04+00:00

When there is a CRC error in the SPROM read from the device, the code
attempts to handle a fallback SPROM. When this also fails, the driver
returns zero rather than an error code.

Signed-off-by: Larry Finger 
Cc: Stable 
Signed-off-by: Kalle Valo

ssb: extract power info from SPROM revs 4 and 5

2014-07-18T17:45:24+00:00

This is needed to properly handle early 802.11n devices like BCM4321.

Signed-off-by: Rafał Miłecki 
Signed-off-by: John W. Linville

ssb: extract antenna gains from SPROMs revs 4+ properly

2014-07-15T20:00:19+00:00

They are encoded the same way as in older SPROMs.

Signed-off-by: Rafał Miłecki 
Signed-off-by: John W. Linville

ssb: make code for antenna gain extraction more generic

2014-07-15T20:00:18+00:00

Signed-off-by: Rafał Miłecki 
Signed-off-by: John W. Linville

ssb: read additional sprom v2 and v3 attributes.

2013-03-25T20:46:56+00:00

These attributes should be in the sprom for rev 2 and 3, but they were
not read out.

Signed-off-by: Hauke Mehrtens 
Signed-off-by: John W. Linville

ssb: extract board_type from SPROM

2013-03-25T20:43:40+00:00

Signed-off-by: Rafał Miłecki 
Signed-off-by: John W. Linville

ssb: pci: Fix flipping of MAC address

2013-03-13T18:23:02+00:00

Since commit e565275 entitled "ssb: pci: Standardize a function to get mac
address", the SPROM readout of the MAC has had the values flipped so that
00:11:22:33:44:55 became 11:00:33:22:55:44. The fix has been tested on both
little- and big-endian architectures.

Reported-by: Rafał Miłecki 
Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville