[03/13] Move COMPAT_ATM_ADDPARTY to net/atm/svc.c
diff mbox

Message ID 1442271047-4908-4-git-send-email-palmer@dabbelt.com
State New
Headers show

Commit Message

Palmer Dabbelt Sept. 14, 2015, 10:50 p.m. UTC
This used to be behind an #ifdef COMPAT_COMPAT, so most of userspace
wouldn't have seen the definition before.  Unfortunately this header
file became visible to userspace, so the definition has instead been
moved to net/atm/svc.c (the only user).

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Reviewed-by: Andrew Waterman <waterman@eecs.berkeley.edu>
Reviewed-by: Albert Ou <aou@eecs.berkeley.edu>
---
 include/uapi/linux/atmdev.h | 4 ----
 net/atm/svc.c               | 5 +++++
 2 files changed, 5 insertions(+), 4 deletions(-)

Comments

David Howells Sept. 17, 2015, 9:57 a.m. UTC | #1
Palmer Dabbelt <palmer@dabbelt.com> wrote:

> +#ifdef CONFIG_COMPAT
> +/* It actually takes struct sockaddr_atmsvc, not struct atm_iobuf */
> +#define COMPAT_ATM_ADDPARTY _IOW('a', ATMIOC_SPECIAL+4, struct compat_atm_iobuf)
> +#endif

I wonder if it would hurt to ditch the conditionals entirely.  It only eats
cpp namespace, not C namespace so it won't affect the output if it is not used
because the code that uses it is compiled out.

David
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Palmer Dabbelt Sept. 17, 2015, 8:53 p.m. UTC | #2
On Thu, 17 Sep 2015 02:57:12 PDT (-0700), dhowells@redhat.com wrote:
> Palmer Dabbelt <palmer@dabbelt.com> wrote:
>
>> +#ifdef CONFIG_COMPAT
>> +/* It actually takes struct sockaddr_atmsvc, not struct atm_iobuf */
>> +#define COMPAT_ATM_ADDPARTY _IOW('a', ATMIOC_SPECIAL+4, struct compat_atm_iobuf)
>> +#endif
>
> I wonder if it would hurt to ditch the conditionals entirely.  It only eats
> cpp namespace, not C namespace so it won't affect the output if it is not used
> because the code that uses it is compiled out.

Makes sense to me.

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Patch
diff mbox

diff --git a/include/uapi/linux/atmdev.h b/include/uapi/linux/atmdev.h
index 93e0ec008ca8..3dcec701501c 100644
--- a/include/uapi/linux/atmdev.h
+++ b/include/uapi/linux/atmdev.h
@@ -100,10 +100,6 @@  struct atm_dev_stats {
 					/* use backend to make new if */
 #define ATM_ADDPARTY  	_IOW('a', ATMIOC_SPECIAL+4,struct atm_iobuf)
  					/* add party to p2mp call */
-#ifdef CONFIG_COMPAT
-/* It actually takes struct sockaddr_atmsvc, not struct atm_iobuf */
-#define COMPAT_ATM_ADDPARTY  	_IOW('a', ATMIOC_SPECIAL+4,struct compat_atm_iobuf)
-#endif
 #define ATM_DROPPARTY 	_IOW('a', ATMIOC_SPECIAL+5,int)
 					/* drop party from p2mp call */
 
diff --git a/net/atm/svc.c b/net/atm/svc.c
index 3fa0a9ee98d1..9e2e6ef285e8 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -27,6 +27,11 @@ 
 #include "signaling.h"
 #include "addr.h"
 
+#ifdef CONFIG_COMPAT
+/* It actually takes struct sockaddr_atmsvc, not struct atm_iobuf */
+#define COMPAT_ATM_ADDPARTY _IOW('a', ATMIOC_SPECIAL+4, struct compat_atm_iobuf)
+#endif
+
 static int svc_create(struct net *net, struct socket *sock, int protocol,
 		      int kern);