signal: Remove _sys_private and _overrun_incr from struct compat_siginfo

We have never passed either field to or from userspace so just remove them.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

arch/arm64/include/asm/compat.h

@@ -174,7 +174,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;       /* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/parisc/include/asm/compat.h

@@ -155,7 +155,6 @@ typedef struct compat_siginfo {
 			int _overrun;           /* overrun count */
 			char _pad[sizeof(unsigned int) - sizeof(int)];
 			compat_sigval_t _sigval;        /* same as below */
-			int _sys_private;       /* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/powerpc/include/asm/compat.h

@@ -145,7 +145,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;		/* timer id */
 			int _overrun;			/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/s390/include/asm/compat.h

@@ -213,7 +213,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;		/* timer id */
 			int _overrun;			/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/sparc/include/asm/compat.h

@@ -175,7 +175,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;		/* timer id */
 			int _overrun;			/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/tile/include/asm/compat.h

@@ -136,8 +136,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
-			int _overrun_incr;	/* amount to add to overrun */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/x86/include/asm/compat.h

@@ -151,8 +151,6 @@ typedef struct compat_siginfo {
 			compat_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
-			int _overrun_incr;	/* amount to add to overrun */
 		} _timer;
 
 		/* POSIX.1b signals */

arch/x86/kernel/signal_compat.c

@@ -64,7 +64,7 @@ static inline void signal_compat_build_tests(void)
 	CHECK_SI_SIZE   (_kill, 2*sizeof(int));
 
 	CHECK_CSI_OFFSET(_timer);
-	CHECK_CSI_SIZE  (_timer, 5*sizeof(int));
+	CHECK_CSI_SIZE  (_timer, 3*sizeof(int));
 	CHECK_SI_SIZE   (_timer, 6*sizeof(int));
 
 	CHECK_CSI_OFFSET(_rt);