Commit 0bb3262c authored by Menglong Dong's avatar Menglong Dong Committed by David S. Miller
Browse files

net: socket: use BIT() for MSG_* 



The bit mask for MSG_* seems a little confused here. Replace it
with BIT() to make it clear to understand.

Signed-off-by: default avatarMenglong Dong <dong.menglong@zte.com.cn>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c1acda98

include/linux/socket.h

+37 −34
Original line number Diff line number Diff line
@@ -283,40 +283,43 @@ struct ucred { 
   Added those for 1003.1g not all are supported yet

 */



#define MSG_OOB		1

#define MSG_PEEK	2

#define MSG_DONTROUTE	4

#define MSG_TRYHARD     4       /* Synonym for MSG_DONTROUTE for DECnet */

#define MSG_CTRUNC	8

#define MSG_PROBE	0x10	/* Do not send. Only probe path f.e. for MTU */

#define MSG_TRUNC	0x20

#define MSG_DONTWAIT	0x40	/* Nonblocking io		 */

#define MSG_EOR         0x80	/* End of record */

#define MSG_WAITALL	0x100	/* Wait for a full request */

#define MSG_FIN         0x200

#define MSG_SYN		0x400

#define MSG_CONFIRM	0x800	/* Confirm path validity */

#define MSG_RST		0x1000

#define MSG_ERRQUEUE	0x2000	/* Fetch message from error queue */

#define MSG_NOSIGNAL	0x4000	/* Do not generate SIGPIPE */

#define MSG_MORE	0x8000	/* Sender will send more */

#define MSG_WAITFORONE	0x10000	/* recvmmsg(): block until 1+ packets avail */

#define MSG_SENDPAGE_NOPOLICY 0x10000 /* sendpage() internal : do no apply policy */

#define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */

#define MSG_BATCH	0x40000 /* sendmmsg(): more messages coming */

#define MSG_OOB		BIT(0)

#define MSG_PEEK	BIT(1)

#define MSG_DONTROUTE	BIT(2)

#define MSG_TRYHARD	BIT(2)	/* Synonym for MSG_DONTROUTE for DECnet		*/

#define MSG_CTRUNC	BIT(3)

#define MSG_PROBE	BIT(4)	/* Do not send. Only probe path f.e. for MTU	*/

#define MSG_TRUNC	BIT(5)

#define MSG_DONTWAIT	BIT(6)	/* Nonblocking io		*/

#define MSG_EOR		BIT(7)	/* End of record		*/

#define MSG_WAITALL	BIT(8)	/* Wait for a full request	*/

#define MSG_FIN		BIT(9)

#define MSG_SYN		BIT(10)

#define MSG_CONFIRM	BIT(11)	/* Confirm path validity	*/

#define MSG_RST		BIT(12)

#define MSG_ERRQUEUE	BIT(13)	/* Fetch message from error queue */

#define MSG_NOSIGNAL	BIT(14)	/* Do not generate SIGPIPE	*/

#define MSG_MORE	BIT(15)	/* Sender will send more	*/

#define MSG_WAITFORONE	BIT(16)	/* recvmmsg(): block until 1+ packets avail */

#define MSG_SENDPAGE_NOPOLICY	BIT(16)	/* sendpage() internal : do no apply policy */

#define MSG_SENDPAGE_NOTLAST	BIT(17)	/* sendpage() internal : not the last page  */

#define MSG_BATCH	BIT(18)		/* sendmmsg(): more messages coming */

#define MSG_EOF		MSG_FIN

#define MSG_NO_SHARED_FRAGS 0x80000 /* sendpage() internal : page frags are not shared */

#define MSG_SENDPAGE_DECRYPTED	0x100000 /* sendpage() internal : page may carry

#define MSG_NO_SHARED_FRAGS	BIT(19)	/* sendpage() internal : page frags

					 * are not shared

					 */

#define MSG_SENDPAGE_DECRYPTED	BIT(20)	/* sendpage() internal : page may carry

					 * plain text and require encryption

					 */



#define MSG_ZEROCOPY	0x4000000	/* Use user data in kernel path */

#define MSG_FASTOPEN	0x20000000	/* Send data in TCP SYN */

#define MSG_CMSG_CLOEXEC 0x40000000	/* Set close_on_exec for file

					   descriptor received through

					   SCM_RIGHTS */

#define MSG_ZEROCOPY	BIT(26)		/* Use user data in kernel path */

#define MSG_FASTOPEN	BIT(29)		/* Send data in TCP SYN */

#define MSG_CMSG_CLOEXEC	BIT(30)	/* Set close_on_exec for file

					 * descriptor received through

					 * SCM_RIGHTS

					 */

#if defined(CONFIG_COMPAT)

#define MSG_CMSG_COMPAT	0x80000000	/* This message needs 32 bit fixups */

#define MSG_CMSG_COMPAT	BIT(31)	/* This message needs 32 bit fixups */

#else

#define MSG_CMSG_COMPAT	0	/* We never have 32 bit fixups */

#endif