• Arnd Bergmann's avatar
    modsign: hide openssl output in silent builds · 9adeb5b0
    Arnd Bergmann authored
    commit 5d06ee20 upstream.
    
    When a user calls 'make -s', we can assume they don't want to
    see any output except for warnings and errors, but instead
    they see this for a warning free build:
    
     ###
     ### Now generating an X.509 key pair to be used for signing modules.
     ###
     ### If this takes a long time, you might wish to run rngd in the
     ### background to keep the supply of entropy topped up.  It
     ### needs to be run as root, and uses a hardware random
     ### number generator if one is available.
     ###
     Generating a 4096 bit RSA private key
     .................................................................................................................................................................................................................................++
     ..............................................................................................................................++
     writing new private key to 'certs/signing_key.pem'
     -----
     ###
     ### Key pair generated.
     ###
    
    The output can confuse simple build testing scripts that just check
    for an empty build log.
    
    This patch silences all the output:
     - "echo" is changed to "@$(kecho)", which is dropped when "-s" gets
       passed
     - the openssl command itself is only printed with V=1, using the
       $(Q) macro
     - The output of openssl gets redirected to /dev/null on "-s" builds.
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    9adeb5b0
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