From 59ae1d127ac0ae404baf414c434ba2651b793f46 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jun 2017 14:29:20 +0200 Subject: networking: introduce and use skb_put_data() A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- drivers/nfc/s3fwrn5/firmware.c | 4 ++-- drivers/nfc/s3fwrn5/i2c.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/nfc/s3fwrn5') diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c index 5f97da1947e3..38548bd970cd 100644 --- a/drivers/nfc/s3fwrn5/firmware.c +++ b/drivers/nfc/s3fwrn5/firmware.c @@ -76,9 +76,9 @@ static int s3fwrn5_fw_prep_msg(struct s3fwrn5_fw_info *fw_info, if (!skb) return -ENOMEM; - memcpy(skb_put(skb, S3FWRN5_FW_HDR_SIZE), &hdr, S3FWRN5_FW_HDR_SIZE); + skb_put_data(skb, &hdr, S3FWRN5_FW_HDR_SIZE); if (len) - memcpy(skb_put(skb, len), data, len); + skb_put_data(skb, data, len); *msg = skb; diff --git a/drivers/nfc/s3fwrn5/i2c.c b/drivers/nfc/s3fwrn5/i2c.c index 3ed0adf6479b..3f09d7fd2285 100644 --- a/drivers/nfc/s3fwrn5/i2c.c +++ b/drivers/nfc/s3fwrn5/i2c.c @@ -157,7 +157,7 @@ static int s3fwrn5_i2c_read(struct s3fwrn5_i2c_phy *phy) if (!skb) return -ENOMEM; - memcpy(skb_put(skb, hdr_size), hdr, hdr_size); + skb_put_data(skb, hdr, hdr_size); if (data_len == 0) goto out; -- cgit v1.2.3