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Commit fe45736f authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 

Pull ARM fixes from Russell King:
 "The usual random collection of relatively small ARM fixes"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8063/1: bL_switcher: fix individual online status reporting of removed CPUs
  ARM: 8064/1: fix v7-M signal return
  ARM: 8057/1: amba: Add Qualcomm vendor ID.
  ARM: 8052/1: unwind: Fix handling of "Pop r4-r[4+nnn],r14" opcode
  ARM: 8051/1: put_user: fix possible data corruption in put_user
  ARM: 8048/1: fix v7-M setup stack location
parents a991639c 3f8517e7

arch/arm/common/bL_switcher.c

+7 −3
Original line number Diff line number Diff line
@@ -433,8 +433,12 @@ static void bL_switcher_restore_cpus(void) 
{

	int i;



	for_each_cpu(i, &bL_switcher_removed_logical_cpus)

		cpu_up(i);

	for_each_cpu(i, &bL_switcher_removed_logical_cpus) {

		struct device *cpu_dev = get_cpu_device(i);

		int ret = device_online(cpu_dev);

		if (ret)

			dev_err(cpu_dev, "switcher: unable to restore CPU\n");

	}

}



static int bL_switcher_halve_cpus(void)
@@ -521,7 +525,7 @@ static int bL_switcher_halve_cpus(void) 
			continue;

		}



		ret = cpu_down(i);

		ret = device_offline(get_cpu_device(i));

		if (ret) {

			bL_switcher_restore_cpus();

			return ret;

arch/arm/include/asm/uaccess.h

+2 −1
Original line number Diff line number Diff line
@@ -171,8 +171,9 @@ extern int __put_user_8(void *, unsigned long long); 
#define __put_user_check(x,p)							\

	({								\

		unsigned long __limit = current_thread_info()->addr_limit - 1; \

		const typeof(*(p)) __user *__tmp_p = (p);		\

		register const typeof(*(p)) __r2 asm("r2") = (x);	\

		register const typeof(*(p)) __user *__p asm("r0") = (p);\

		register const typeof(*(p)) __user *__p asm("r0") = __tmp_p; \

		register unsigned long __l asm("r1") = __limit;		\

		register int __e asm("r0");				\

		switch (sizeof(*(__p))) {				\

arch/arm/kernel/entry-header.S

+4 −0
Original line number Diff line number Diff line
@@ -132,6 +132,10 @@ 
	orrne	r5, V7M_xPSR_FRAMEPTRALIGN

	biceq	r5, V7M_xPSR_FRAMEPTRALIGN



	@ ensure bit 0 is cleared in the PC, otherwise behaviour is

	@ unpredictable

	bic	r4, #1



	@ write basic exception frame

	stmdb	r2!, {r1, r3-r5}

	ldmia	sp, {r1, r3-r5}

arch/arm/kernel/unwind.c

+1 −1
Original line number Diff line number Diff line
@@ -285,7 +285,7 @@ static int unwind_exec_pop_r4_to_rN(struct unwind_ctrl_block *ctrl, 
		if (unwind_pop_register(ctrl, &vsp, reg))

				return -URC_FAILURE;



	if (insn & 0x80)

	if (insn & 0x8)

		if (unwind_pop_register(ctrl, &vsp, 14))

				return -URC_FAILURE;

arch/arm/mm/proc-v7m.S

+5 −3
Original line number Diff line number Diff line
@@ -123,6 +123,11 @@ __v7m_setup: 
	mov	pc, lr

ENDPROC(__v7m_setup)



	.align 2

__v7m_setup_stack:

	.space	4 * 8				@ 8 registers

__v7m_setup_stack_top:



	define_processor_functions v7m, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1



	.section ".rodata"
@@ -152,6 +157,3 @@ __v7m_proc_info: 
	.long	nop_cache_fns		@ proc_info_list.cache

	.size	__v7m_proc_info, . - __v7m_proc_info

__v7m_setup_stack:

	.space	4 * 8				@ 8 registers

__v7m_setup_stack_top: