From: Alex Elder
> Sent: 06 March 2021 03:16
>
> Replace the use of C bit-fields in the rmnet_map_dl_csum_trailer
> structure with a single one-byte field, using constant field masks
> to encode or get at embedded values.
>
> Signed-off-by: Alex Elder <el...@linaro.org>
> Reviewed-by: Bjorn Andersson <bjorn.anders...@linaro.org>
> ---
> .../ethernet/qualcomm/rmnet/rmnet_map_data.c | 2 +-
> include/linux/if_rmnet.h | 17 +++++++----------
> 2 files changed, 8 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
> b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
> index 3291f252d81b0..29d485b868a65 100644
> --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
> +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
> @@ -365,7 +365,7 @@ int rmnet_map_checksum_downlink_packet(struct sk_buff
> *skb, u16 len)
>
> csum_trailer = (struct rmnet_map_dl_csum_trailer *)(skb->data + len);
>
> - if (!csum_trailer->valid) {
> + if (!u8_get_bits(csum_trailer->flags, MAP_CSUM_DL_VALID_FMASK)) {
Is that just an overcomplicated way of saying:
if (!(csum_trailer->flags & MAP_CSUM_DL_VALID_FMASK)) {
David
-
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