linux-toradex.git/drivers/nfc, branch v6.19

Revert "nfc/nci: Add the inconsistency check between the input data length and count"

2026-01-18T02:02:50+00:00

This reverts commit 068648aab72c9ba7b0597354ef4d81ffaac7b979.

NFC packets may have NUL-bytes. Checking for string length is not a correct
assumption here. As long as there is a check for the length copied from
copy_from_user, all should be fine.

The fix only prevented the syzbot reproducer from triggering the bug
because the packet is not enqueued anymore and the code that triggers the
bug is not exercised.

The fix even broke
testing/selftests/nci/nci_dev, making all tests there fail. After the
revert, 6 out of 8 tests pass.

Fixes: 068648aab72c ("nfc/nci: Add the inconsistency check between the input data length and count")
Cc: stable@vger.kernel.org
Signed-off-by: Thadeu Lima de Souza Cascardo 
Link: https://patch.msgid.link/20260113202458.449455-1-cascardo@igalia.com
Signed-off-by: Jakub Kicinski

nfc: pn533: Fix error code in pn533_acr122_poweron_rdr()

2025-12-11T09:40:00+00:00

Set the error code if "transferred != sizeof(cmd)" instead of
returning success.

Fixes: dbafc28955fa ("NFC: pn533: don't send USB data off of the stack")
Signed-off-by: Dan Carpenter 
Link: https://patch.msgid.link/aTfIJ9tZPmeUF4W1@stanley.mountain
Signed-off-by: Jakub Kicinski

NFC: mei_phy: fix kernel-doc warnings

2025-11-18T03:32:32+00:00

Fix kernel-doc warnings in mei_phy.h to avoid build warnings and to
improve and documentation:

mei_phy.h:15: warning: missing initial short description on line:
 * struct nfc_mei_phy
mei_phy.h:19: warning: bad line:

Signed-off-by: Randy Dunlap 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20251116070959.85055-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski

nfc: s3fwrn5: Use SHA-1 library instead of crypto_shash

2025-08-19T00:29:08+00:00

Now that a SHA-1 library API is available, use it instead of
crypto_shash.  This is simpler and faster.

Signed-off-by: Eric Biggers 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20250815022329.28672-1-ebiggers@kernel.org
Signed-off-by: Jakub Kicinski

nfc: pn533: Delete an unnecessary check

2025-08-15T00:33:20+00:00

The "rc" variable is set like this:

	if (IS_ERR(resp)) {
		rc = PTR_ERR(resp);

We know that "rc" is negative so there is no need to check.

Signed-off-by: Dan Carpenter 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/aJwn2ox5g9WsD2Vx@stanley.mountain
Signed-off-by: Jakub Kicinski

NFC: trf7970a: Create device-tree parameter for RX gain reduction

2025-06-27T22:08:57+00:00

The TRF7970a device is sensitive to RF disturbances, which can make it
hard to pass some EMC immunity tests. By reducing the RX antenna gain,
the device becomes less sensitive to EMC disturbances, as a trade-off
against antenna performance.

Add a device tree option to select RX gain reduction to improve EMC
performance.

Selecting a communication standard in the ISO control register resets
the RX antenna gain settings. Therefore set the RX gain reduction
everytime the ISO control register changes, when the option is used.

Signed-off-by: Paul Geurts 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20250626141242.3749958-3-paul.geurts@prodrive-technologies.com
Signed-off-by: Jakub Kicinski

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

nfc: Correct Samsung "Electronics" spelling in copyright headers

2025-05-22T03:31:18+00:00

Fix the misspelling of "Electronics" in copyright headers across:
- s3fwrn5 driver
- virtual_ncidev driver

Signed-off-by: Sumanth Gavini 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20250520072119.176018-1-sumanth.gavini@yahoo.com
Signed-off-by: Jakub Kicinski

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.

Conversion was done with coccinelle plus manual fixups where necessary.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar

nfc: mrvl: Don't use "proxy" headers

2025-01-19T01:10:05+00:00

Update header inclusions to follow IWYU (Include What You Use)
principle.

In this case replace of_gpio.h, which is subject to remove by the GPIOLIB
subsystem, with the respective headers that are being used by the driver.

Acked-by: Krzysztof Kozlowski 
Signed-off-by: Andy Shevchenko 
Link: https://patch.msgid.link/20250116153119.148097-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jakub Kicinski