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commite549360069upstream. Received frame from QMC contains the CRC. Upper layers don't need this CRC and tcpdump mentioned trailing junk data due to this CRC presence. As some other HDLC driver, simply discard this CRC. Fixes:d0f2258e79("net: wan: Add support for QMC HDLC") Cc: stable@vger.kernel.org Signed-off-by: Herve Codina <herve.codina@bootlin.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240730063133.179598-1-herve.codina@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>