Re: [PATCH net] s390/qeth: allow bridgeport queries despite OS_MISMATCH

[sashiko-bot@kernel.org]

> When HiperSockets interfaces on the same VCHID span different OS
> families, reads of the sysfs attributes bridge_role and bridge_state
> fail with -EPERM if bridge port ownership belongs to another OS family.
> 
> As a result, userspace tools such as 'lszdev -ii' cannot retrieve
> bridge_role and bridge_state, even though firmware returns valid bridge
> port data for QUERY_BRIDGE_PORTS requests.
> 
> The firmware reports IPA_RC_SBP_IQD_OS_MISMATCH (0x0010) to indicate
> that bridge port ownership belongs to a different OS family. For
> QUERY_BRIDGE_PORTS operations, firmware still returns valid bridge port
> data (role=none, state=inactive) together with a primary return code of
> 0x0000 (success).
> 
> Allow QUERY_BRIDGE_PORTS requests to return the bridge port data
> [ ... ]
> Fixes: 1b05cf6285c1 ("qeth: Include error message for "OS Mismatch"")
> Cc: stable@vger.kernel.org
> Suggested-by: Halil Pasic <pasic@linux.ibm.com>
> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
> Signed-off-by: Nagamani PV <nagamani@linux.ibm.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260901155344.3561483-1-nagamani@linux.ibm.com?part=1