linux_dsm_epyc7002/drivers/nfc/pn544
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
..
i2c.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
Kconfig NFC: pn544: Auto-select core module 2015-10-19 19:56:28 +02:00
Makefile NFC: pn544: Add MEI physical layer 2013-04-16 00:39:41 +02:00
mei.c nfc: mei: use module_mei_cl_driver macro 2016-10-28 08:21:21 -04:00
pn544.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
pn544.h NFC: pn544: Pass hardware variant information when downloading firmware 2014-02-16 23:49:54 +01:00