Warnings before patch:
files: ['certs/system_keyring.c', 'include/linux/verification.h']
Warning: certs/system_keyring.c:48 No description found for return value of 'restrict_link_by_builtin_trusted'
Warning: certs/system_keyring.c:68 No description found for return value of 'restrict_link_by_digsig_builtin'
Warning: certs/system_keyring.c:91 No description found for return value of 'restrict_link_by_builtin_and_secondary_trusted'
Warning: certs/system_keyring.c:120 No description found for return value of 'restrict_link_by_digsig_builtin_and_secondary'
Warning: certs/system_keyring.c:210 No description found for return value of 'restrict_link_by_builtin_secondary_and_machine'
Warning: certs/system_keyring.c:318 No description found for return value of 'verify_pkcs7_message_sig'
Warning: certs/system_keyring.c:403 No description found for return value of 'verify_pkcs7_signature'
Warning: certs/system_keyring.c:48 No description found for return value of 'restrict_link_by_builtin_trusted'
Warning: certs/system_keyring.c:68 No description found for return value of 'restrict_link_by_digsig_builtin'
Warning: certs/system_keyring.c:91 No description found for return value of 'restrict_link_by_builtin_and_secondary_trusted'
Warning: certs/system_keyring.c:120 No description found for return value of 'restrict_link_by_digsig_builtin_and_secondary'
Warning: certs/system_keyring.c:210 No description found for return value of 'restrict_link_by_builtin_secondary_and_machine'
Warning: certs/system_keyring.c:318 No description found for return value of 'verify_pkcs7_message_sig'
Warning: certs/system_keyring.c:403 No description found for return value of 'verify_pkcs7_signature'

Current warnings:
files: ['certs/system_keyring.c', 'include/linux/verification.h']
Warning: certs/system_keyring.c:48 No description found for return value of 'restrict_link_by_builtin_trusted'
Warning: certs/system_keyring.c:68 No description found for return value of 'restrict_link_by_digsig_builtin'
Warning: certs/system_keyring.c:91 No description found for return value of 'restrict_link_by_builtin_and_secondary_trusted'
Warning: certs/system_keyring.c:120 No description found for return value of 'restrict_link_by_digsig_builtin_and_secondary'
Warning: certs/system_keyring.c:210 No description found for return value of 'restrict_link_by_builtin_secondary_and_machine'
Warning: certs/system_keyring.c:306 No description found for return value of 'validate_pkcs7_trust'
Warning: certs/system_keyring.c:361 No description found for return value of 'verify_pkcs7_message_sig'
Warning: certs/system_keyring.c:417 No description found for return value of 'verify_pkcs7_signature'
Warning: certs/system_keyring.c:48 No description found for return value of 'restrict_link_by_builtin_trusted'
Warning: certs/system_keyring.c:68 No description found for return value of 'restrict_link_by_digsig_builtin'
Warning: certs/system_keyring.c:91 No description found for return value of 'restrict_link_by_builtin_and_secondary_trusted'
Warning: certs/system_keyring.c:120 No description found for return value of 'restrict_link_by_digsig_builtin_and_secondary'
Warning: certs/system_keyring.c:210 No description found for return value of 'restrict_link_by_builtin_secondary_and_machine'
Warning: certs/system_keyring.c:306 No description found for return value of 'validate_pkcs7_trust'
Warning: certs/system_keyring.c:361 No description found for return value of 'verify_pkcs7_message_sig'
Warning: certs/system_keyring.c:417 No description found for return value of 'verify_pkcs7_signature'

Warnings before: 14 after: 16 (add: 2)

New warnings added:
Warning: certs/system_keyring.c:306 No description found for return value of 'validate_pkcs7_trust'
Warning: certs/system_keyring.c:306 No description found for return value of 'validate_pkcs7_trust'
Per-file breakdown:
     2 certs/system_keyring.c