TN48M-P-DN: GBIC Dell M14MK (S28-10G-25G-SR-85C): `AC3x B2B 98DX3265 0000:01:00.0 swp49: validation with support 0000000,00000000,00000400 failed: -22`

[paulmenzel]

After plugging in a Dell GBIC supporting 10G and 25G into the SFP+ ports of the Delta TN48M-P-DN, Linux 5.15.11-g3d377b49270b logs:

[…]
[42942716.586958] sfp sfp-49: module DELL EMC         M14MK            rev A1   sn VN0AP8005718904  dc 250827  
[42942716.596868] AC3x B2B 98DX3265 0000:01:00.0 swp49: validation with support 0000000,00000000,00000400 failed: -22
[42942729.322925] sfp sfp-50: module DELL EMC         M14MK            rev A1   sn VN0AP8005718904  dc 250827  
[42942729.332835] AC3x B2B 98DX3265 0000:01:00.0 swp50: validation with support 0000000,00000000,00000400 failed: -22
[42942739.210892] sfp sfp-51: module DELL EMC         M14MK            rev A1   sn VN0AP8005718904  dc 250827  
[42942739.220807] AC3x B2B 98DX3265 0000:01:00.0 swp51: validation with support 0000000,00000000,00000400 failed: -22

Is that a Linux kernel or firmware issue?