From: Alex Elder <elder@linaro.org>
To: arnd@arndb.de, subashab@codeaurora.org, david.brown@linaro.org,
agross@kernel.org, davem@davemloft.net
Cc: bjorn.andersson@linaro.org, ilias.apalodimas@linaro.org,
cpratapa@codeaurora.org, syadagir@codeaurora.org,
evgreen@chromium.org, benchan@google.com, ejcaruso@google.com,
netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 5/8] net: qualcomm: rmnet: don't use C bit-fields in rmnet checksum trailer
Date: Mon, 20 May 2019 08:53:51 -0500 [thread overview]
Message-ID: <20190520135354.18628-6-elder@linaro.org> (raw)
In-Reply-To: <20190520135354.18628-1-elder@linaro.org>
Replace the use of C bit-fields in the rmnet_map_dl_csum_trailer
structure with a single integral field, using field masks to
encode or get at sub-field values.
Signed-off-by: Alex Elder <elder@linaro.org>
---
drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h | 6 ++++--
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c | 2 +-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
index f3231c26badd..fb1cdb4ec41f 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
@@ -51,13 +51,15 @@ struct rmnet_map_header {
struct rmnet_map_dl_csum_trailer {
u8 reserved1;
- u8 valid:1;
- u8 reserved2:7;
+ u8 flags; /* RMNET_MAP_DL_* */
u16 csum_start_offset;
u16 csum_length;
__be16 csum_value;
} __aligned(1);
+#define RMNET_MAP_DL_CSUM_VALID_FMASK GENMASK(0, 0)
+#define RMNET_MAP_DL_RESERVED_FMASK GENMASK(7, 1)
+
struct rmnet_map_ul_csum_header {
__be16 csum_start_offset;
__be16 csum_info; /* RMNET_MAP_UL_* */
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
index 72b64114505a..a95111cdcd29 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
@@ -362,7 +362,7 @@ 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, RMNET_MAP_DL_CSUM_VALID_FMASK)) {
priv->stats.csum_valid_unset++;
return -EINVAL;
}
--
2.20.1
next prev parent reply other threads:[~2019-05-20 13:54 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 13:53 [PATCH 0/8] net: introduce "include/linux/if_rmnet.h" Alex Elder
2019-05-20 13:53 ` [PATCH 1/8] net: qualcomm: rmnet: fix struct rmnet_map_header Alex Elder
2019-05-20 15:38 ` Bjorn Andersson
2019-05-20 20:11 ` Subash Abhinov Kasiviswanathan
2019-05-20 21:23 ` Alex Elder
2019-05-21 1:32 ` Subash Abhinov Kasiviswanathan
2019-05-21 2:30 ` Alex Elder
2019-05-21 3:07 ` Bjorn Andersson
2019-05-21 11:03 ` Alex Elder
2019-05-20 13:53 ` [PATCH 2/8] net: qualcomm: rmnet: kill RMNET_MAP_GET_*() accessor macros Alex Elder
2019-05-20 15:41 ` Bjorn Andersson
2019-05-20 13:53 ` [PATCH 3/8] net: qualcomm: rmnet: use field masks instead of C bit-fields Alex Elder
2019-05-20 15:43 ` Bjorn Andersson
2019-05-20 13:53 ` [PATCH 4/8] net: qualcomm: rmnet: don't use C bit-fields in rmnet checksum header Alex Elder
2019-05-20 15:49 ` Bjorn Andersson
2019-05-20 13:53 ` Alex Elder [this message]
2019-05-20 17:17 ` [PATCH 5/8] net: qualcomm: rmnet: don't use C bit-fields in rmnet checksum trailer Bjorn Andersson
2019-05-20 13:53 ` [PATCH 6/8] net: qualcomm: rmnet: get rid of a variable in rmnet_map_ipv4_ul_csum_header() Alex Elder
2019-05-20 17:17 ` Bjorn Andersson
2019-05-20 13:53 ` [PATCH 7/8] net: qualcomm: rmnet: mark endianness of struct rmnet_map_dl_csum_trailer fields Alex Elder
2019-05-20 17:17 ` Bjorn Andersson
2019-05-20 13:53 ` [PATCH 8/8] net: introduce "include/linux/if_rmnet.h" Alex Elder
2019-05-20 17:18 ` Bjorn Andersson
2019-05-20 18:00 ` [PATCH 0/8] " Alex Elder
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