Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull ARM64 updates from Catalin Marinas:

 - Generic execve, kernel_thread, fork/vfork/clone.

 - Preparatory patches for KVM support (initialising EL2 mode for later
   installing KVM support, hypervisor stub).

 - Signal handling corner case fix (alternative signal stack set up for
   a SEGV handler, which is raised in response to RLIMIT_STACK being
   reached).

 - Sub-nanosecond timer error fix.

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (30 commits)
  arm64: Update the MAINTAINERS entry
  arm64: compat for clock_adjtime(2) is miswired
  arm64: move FP-SIMD save/restore code to a macro
  arm64: hyp: initialize vttbr_el2 to zero
  arm64: add hypervisor stub
  arm64: record boot mode when entering the kernel
  arm64: move vector entry macro to assembler.h
  arm64: add AArch32 execution modes to ptrace.h
  arm64: expand register mapping between AArch32 and AArch64
  arm64: generic timer: use virtual counter instead of physical at EL0
  arm64: vdso: defer shifting of nanosecond component of timespec
  arm64: vdso: rework __do_get_tspec register allocation and return shift
  arm64: vdso: check sequence counter even for coarse realtime operations
  arm64: vdso: fix clocksource mask when extracting bottom 56 bits
  ARM64: Remove incorrect Kconfig symbol HAVE_SPARSE_IRQ
  Documentation: Fixes a word in Documentation/arm64/memory.txt
  arm64: Make !dirty ptes read-only
  arm64: Convert empty flush_cache_{mm,page} functions to static inline
  arm64: signal: let the compiler inline compat_get_sigframe
  arm64: signal: return struct rt_sigframe from get_sigframe
  ...

Conflicts:
	arch/arm64/include/asm/unistd32.h

1 files changed, 8 insertions, 12 deletions

diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 4654824747a4..a4db3d22aac4 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -578,9 +578,9 @@ badframe:
 	return 0;
 }
 
-static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
-					       struct pt_regs *regs,
-					       int framesize)
+static void __user *compat_get_sigframe(struct k_sigaction *ka,
+					struct pt_regs *regs,
+					int framesize)
 {
 	compat_ulong_t sp = regs->compat_sp;
 	void __user *frame;
@@ -605,9 +605,9 @@ static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
 	return frame;
 }
 
-static int compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
-			       compat_ulong_t __user *rc, void __user *frame,
-			       int usig)
+static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
+				compat_ulong_t __user *rc, void __user *frame,
+				int usig)
 {
 	compat_ulong_t handler = ptr_to_compat(ka->sa.sa_handler);
 	compat_ulong_t retcode;
@@ -643,8 +643,6 @@ static int compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
 	regs->compat_lr	= retcode;
 	regs->pc	= handler;
 	regs->pstate	= spsr;
-
-	return 0;
 }
 
 static int compat_setup_sigframe(struct compat_sigframe __user *sf,
@@ -714,11 +712,9 @@ int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 	err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
 
 	err |= compat_setup_sigframe(&frame->sig, regs, set);
-	if (err == 0)
-		err = compat_setup_return(regs, ka, frame->sig.retcode, frame,
-					  usig);
 
 	if (err == 0) {
+		compat_setup_return(regs, ka, frame->sig.retcode, frame, usig);
 		regs->regs[1] = (compat_ulong_t)(unsigned long)&frame->info;
 		regs->regs[2] = (compat_ulong_t)(unsigned long)&frame->sig.uc;
 	}
@@ -741,7 +737,7 @@ int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
 
 	err |= compat_setup_sigframe(frame, regs, set);
 	if (err == 0)
-		err = compat_setup_return(regs, ka, frame->retcode, frame, usig);
+		compat_setup_return(regs, ka, frame->retcode, frame, usig);
 
 	return err;
 }