Commit 301cdf5c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 

Pull ARM fixes from Russell King:
 "This is mainly audit fixes, found by folks who happened to enable this
  feature and then found it broke their user applications."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7414/1: SMP: prevent use of the console when using idmap_pgd
  ARM: 7412/1: audit: use only AUDIT_ARCH_ARM regardless of endianness
  ARM: 7411/1: audit: fix treatment of saved ip register during syscall tracing
  ARM: 7410/1: Add extra clobber registers for assembly in kernel_execve
parents febb72a6 fde165b2

arch/arm/kernel/ptrace.c

+9 −15
Original line number Diff line number Diff line
@@ -906,27 +906,14 @@ long arch_ptrace(struct task_struct *child, long request, 
	return ret;

}



#ifdef __ARMEB__

#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB

#else

#define AUDIT_ARCH_NR AUDIT_ARCH_ARM

#endif



asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)

{

	unsigned long ip;



	/*

	 * Save IP.  IP is used to denote syscall entry/exit:

	 *  IP = 0 -> entry, = 1 -> exit

	 */

	ip = regs->ARM_ip;

	regs->ARM_ip = why;



	if (!ip)

	if (why)

		audit_syscall_exit(regs);

	else

		audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0,

		audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,

				    regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);



	if (!test_thread_flag(TIF_SYSCALL_TRACE))
@@ -936,6 +923,13 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) 


	current_thread_info()->syscall = scno;



	/*

	 * IP is used to denote syscall entry/exit:

	 * IP = 0 -> entry, =1 -> exit

	 */

	ip = regs->ARM_ip;

	regs->ARM_ip = why;



	/* the 0x80 provides a way for the tracing parent to distinguish

	   between a syscall stop and SIGTRAP delivery */

	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)

arch/arm/kernel/smp.c

+2 −2
Original line number Diff line number Diff line
@@ -251,8 +251,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void) 
	struct mm_struct *mm = &init_mm;

	unsigned int cpu = smp_processor_id();



	printk("CPU%u: Booted secondary processor\n", cpu);



	/*

	 * All kernel threads share the same mm context; grab a

	 * reference and switch to it.
@@ -264,6 +262,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void) 
	enter_lazy_tlb(mm, current);

	local_flush_tlb_all();



	printk("CPU%u: Booted secondary processor\n", cpu);



	cpu_init();

	preempt_disable();

	trace_hardirqs_off();

arch/arm/kernel/sys_arm.c

+1 −1
Original line number Diff line number Diff line
@@ -115,7 +115,7 @@ int kernel_execve(const char *filename, 
		  "Ir" (THREAD_START_SP - sizeof(regs)),

		  "r" (&regs),

		  "Ir" (sizeof(regs))

		: "r0", "r1", "r2", "r3", "ip", "lr", "memory");

		: "r0", "r1", "r2", "r3", "r8", "r9", "ip", "lr", "memory");



 out:

	return ret;

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