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This version of the ioctl should be future proof if we ever add more cipher types or bigger keys. This also fixes the build error for ARM related to get_user() being undefined. I have tested this for AES-128 and AES-256. I have a separate patch for the smbinfo utility to make use of this new ioctl that I will send in a separate thread. Aurelien Aptel (2): cifs: set server->cipher_type to AES-128-CCM for SMB3.0 cifs: change format of CIFS_FULL_KEY_DUMP ioctl fs/cifs/cifs_ioctl.h | 25 ++++++-- fs/cifs/cifspdu.h | 3 +- fs/cifs/ioctl.c | 143 +++++++++++++++++++++++++++++++------------ fs/cifs/smb2pdu.c | 7 +++ 4 files changed, 133 insertions(+), 45 deletions(-) --=20 2.31.1