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linux-next/net/nfc
Johannes Berg 634fef6107 networking: add and use skb_put_u8()
Joe and Bjørn suggested that it'd be nicer to not have the
cast in the fairly common case of doing
	*(u8 *)skb_put(skb, 1) = c;

Add skb_put_u8() for this case, and use it across the code,
using the following spatch:

    @@
    expression SKB, C, S;
    typedef u8;
    identifier fn = {skb_put};
    fresh identifier fn2 = fn ## "_u8";
    @@
    - *(u8 *)fn(SKB, S) = C;
    + fn2(SKB, C);

Note that due to the "S", the spatch isn't perfect, it should
have checked that S is 1, but there's also places that use a
sizeof expression like sizeof(var) or sizeof(u8) etc. Turns
out that nobody ever did something like
	*(u8 *)skb_put(skb, 2) = c;

which would be wrong anyway since the second byte wouldn't be
initialized.

Suggested-by: Joe Perches <joe@perches.com>
Suggested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:40 -04:00
..
hci networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
nci networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
af_nfc.c net: socket: mark socket protocol handler structs as const 2017-05-16 11:54:07 -04:00
core.c nfc: netlink: HCI event connectivity implementation 2015-12-29 19:06:20 +01:00
digital_core.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
digital_dep.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
digital_technology.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
digital.h NFC: digital: Add 'tg_listen_md' and 'tg_get_rf_tech' driver hooks 2014-07-23 01:17:31 +02:00
Kconfig NFC Digital: Add NFC-F technology support 2013-09-25 02:02:25 +02:00
llcp_commands.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
llcp_core.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
llcp_sock.c net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
llcp.h net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
Makefile NFC Digital: Add initiator NFC-DEP support 2013-09-25 02:02:27 +02:00
netlink.c NFC 4.12 pull request 2017-04-21 15:29:40 -04:00
nfc.h nfc: netlink: HCI event connectivity implementation 2015-12-29 19:06:20 +01:00
rawsock.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00