[SRU][J:linux-bluefield][PATCH v1 0/2] pinctrl-mlxbf3: should enable 'const pinctrl_desc' in Jammy
David Thompson
davthompson at nvidia.com
Wed Aug 13 20:41:01 UTC 2025
BugLink: https://bugs.launchpad.net/bugs/2120587
SRU Justification:
[Impact]
Recent upstream changes to kernel and the BlueField-3 pin control driver,
pinctrl-mlxbf3, support the use of "const pinctrl_desc". This critical
driver structure should make use of this technique for improved stability.
[Fix]
The fix is to cherry pick the following upstream patch:
490bfd1ca556 pinctrl: Constify static 'pinctrl_desc'
It may be required to cherry pick other upstream patches so that
everything applies cleanly.
[Test Case]
* Boot BlueField-3 platform with software containing fix
* Verify that pinctrl-mlxbf3 modules is loaded properly
* Check the kernel log via dmesg for proper messages from pinctrl subsystem
* Verify that there are no kernel faults caused by pinctrl-mlxbf3
* Reboot several times and keep checking log
[Regression Potential]
This fix is upstreamed and tested well.
Krzysztof Kozlowski (2):
pinctrl: Constify pointers to 'pinctrl_desc'
pinctrl: Constify static 'pinctrl_desc'
drivers/pinctrl/berlin/berlin.c | 2 +-
drivers/pinctrl/core.c | 13 +++++++------
drivers/pinctrl/core.h | 2 +-
drivers/pinctrl/pinctrl-artpec6.c | 2 +-
drivers/pinctrl/pinctrl-bm1880.c | 2 +-
drivers/pinctrl/pinctrl-k210.c | 2 +-
drivers/pinctrl/pinctrl-lpc18xx.c | 2 +-
drivers/pinctrl/pinctrl-mlxbf3.c | 2 +-
drivers/pinctrl/pinctrl-tb10x.c | 2 +-
drivers/pinctrl/pinctrl-zynq.c | 2 +-
include/linux/pinctrl/pinctrl.h | 8 ++++----
11 files changed, 20 insertions(+), 19 deletions(-)
--
2.43.2
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