[PATCH] autofs4: header file update

The current header file definitions for autofs version 5 have caused a couple
of problems for application builds downstream.

This fixes the problem by separating the definitions.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 20 insertions, 8 deletions

diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 1e4a539f4417..0d041a9cb348 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -84,7 +84,11 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
 				 struct autofs_wait_queue *wq,
 				 int type)
 {
-	union autofs_packet_union pkt;
+	union {
+		struct autofs_packet_hdr hdr;
+		union autofs_packet_union v4_pkt;
+		union autofs_v5_packet_union v5_pkt;
+	} pkt;
 	size_t pktsz;
 
 	DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
@@ -98,7 +102,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
 	/* Kernel protocol v4 missing and expire packets */
 	case autofs_ptype_missing:
 	{
-		struct autofs_packet_missing *mp = &pkt.missing;
+		struct autofs_packet_missing *mp = &pkt.v4_pkt.missing;
 
 		pktsz = sizeof(*mp);
 
@@ -110,7 +114,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
 	}
 	case autofs_ptype_expire_multi:
 	{
-		struct autofs_packet_expire_multi *ep = &pkt.expire_multi;
+		struct autofs_packet_expire_multi *ep = &pkt.v4_pkt.expire_multi;
 
 		pktsz = sizeof(*ep);
 
@@ -129,7 +133,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
 	case autofs_ptype_missing_direct:
 	case autofs_ptype_expire_direct:
 	{
-		struct autofs_v5_packet *packet = &pkt.v5_packet;
+		struct autofs_v5_packet *packet = &pkt.v5_pkt.v5_packet;
 
 		pktsz = sizeof(*packet);
 
diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h
index 0a6bc52ffe88..31a29541b504 100644
--- a/include/linux/auto_fs4.h
+++ b/include/linux/auto_fs4.h
@@ -59,6 +59,13 @@ struct autofs_packet_expire_multi {
 	char name[NAME_MAX+1];
 };
 
+union autofs_packet_union {
+	struct autofs_packet_hdr hdr;
+	struct autofs_packet_missing missing;
+	struct autofs_packet_expire expire;
+	struct autofs_packet_expire_multi expire_multi;
+};
+
 /* autofs v5 common packet struct */
 struct autofs_v5_packet {
 	struct autofs_packet_hdr hdr;
@@ -78,12 +85,13 @@ typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
 typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
 typedef struct autofs_v5_packet autofs_packet_expire_direct_t;
 
-union autofs_packet_union {
+union autofs_v5_packet_union {
 	struct autofs_packet_hdr hdr;
-	struct autofs_packet_missing missing;
-	struct autofs_packet_expire expire;
-	struct autofs_packet_expire_multi expire_multi;
 	struct autofs_v5_packet v5_packet;
+	autofs_packet_missing_indirect_t missing_indirect;
+	autofs_packet_expire_indirect_t expire_indirect;
+	autofs_packet_missing_direct_t missing_direct;
+	autofs_packet_expire_direct_t expire_direct;
 };
 
 #define AUTOFS_IOC_EXPIRE_MULTI		_IOW(0x93,0x66,int)