Alex Elder f330fda331
net: ipa: header pad field only valid for AP->modem endpoint ...
Only QMAP endpoints should be configured to find a pad size field
within packet headers. They are found in the first byte of the QMAP
header (and the hardware fills only the 6 bits in that byte that
constitute the pad_len field).
The RMNet driver assumes the pad_len field is valid for received
packets, so we want to ensure the pad_len field is filled in that
case. That driver also assumes the length in the QMAP header
includes the pad bytes.
The RMNet driver does *not* pad the packets it sends, so the pad_len
field can be ignored.
Fix ipa_endpoint_init_hdr_ext() so it only marks the pad field
offset valid for QMAP RX endpoints, and in that case indicates
that the length field in the header includes the pad bytes.
Signed-off-by: Alex Elder <elder@linaro.org >
Signed-off-by: David S. Miller <davem@davemloft.net >
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