Commit e6754825 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'mips_fixes_4.16_4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips 

Pull MIPS fixes from James Hogan:
 "A miscellaneous pile of MIPS fixes for 4.16:

   - move put_compat_sigset() to evade hardened usercopy warnings (4.16)

   - select ARCH_HAVE_PC_{SERIO,PARPORT} for Loongson64 platforms (4.16)

   - fix kzalloc() failure handling in ath25 (3.19) and Octeon (4.0)

   - fix disabling of IPIs during BMIPS suspend (3.19)"

* tag 'mips_fixes_4.16_4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
  MIPS: BMIPS: Do not mask IPIs during suspend
  MIPS: Loongson64: Select ARCH_MIGHT_HAVE_PC_SERIO
  MIPS: Loongson64: Select ARCH_MIGHT_HAVE_PC_PARPORT
  signals: Move put_compat_sigset to compat.h to silence hardened usercopy
  MIPS: OCTEON: irq: Check for null return on kzalloc allocation
  MIPS: ath25: Check for kzalloc allocation failure
parents 98577c6a 06a3f0c9

arch/mips/ath25/board.c

+2 −0
Original line number Diff line number Diff line
@@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size) 
	}



	board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);

	if (!board_data)

		goto error;

	ath25_board.config = (struct ath25_boarddata *)board_data;

	memcpy_fromio(board_data, bcfg, 0x100);

	if (broken_boarddata) {

arch/mips/cavium-octeon/octeon-irq.c

+2 −0
Original line number Diff line number Diff line
@@ -2277,6 +2277,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node, 
	}



	host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);

	if (!host_data)

		return -ENOMEM;

	raw_spin_lock_init(&host_data->lock);



	addr = of_get_address(ciu_node, 0, NULL, NULL);

arch/mips/kernel/smp-bmips.c

+4 −4
Original line number Diff line number Diff line
@@ -168,11 +168,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus) 
		return;

	}



	if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,

			"smp_ipi0", NULL))

	if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,

			IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))

		panic("Can't request IPI0 interrupt");

	if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,

			"smp_ipi1", NULL))

	if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,

			IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))

		panic("Can't request IPI1 interrupt");

}

arch/mips/loongson64/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ choice 
config LEMOTE_FULOONG2E

	bool "Lemote Fuloong(2e) mini-PC"

	select ARCH_SPARSEMEM_ENABLE

	select ARCH_MIGHT_HAVE_PC_PARPORT

	select ARCH_MIGHT_HAVE_PC_SERIO

	select CEVT_R4K

	select CSRC_R4K

	select SYS_HAS_CPU_LOONGSON2E
@@ -33,6 +35,8 @@ config LEMOTE_FULOONG2E 
config LEMOTE_MACH2F

	bool "Lemote Loongson 2F family machines"

	select ARCH_SPARSEMEM_ENABLE

	select ARCH_MIGHT_HAVE_PC_PARPORT

	select ARCH_MIGHT_HAVE_PC_SERIO

	select BOARD_SCACHE

	select BOOT_ELF32

	select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
@@ -62,6 +66,8 @@ config LEMOTE_MACH2F 
config LOONGSON_MACH3X

	bool "Generic Loongson 3 family machines"

	select ARCH_SPARSEMEM_ENABLE

	select ARCH_MIGHT_HAVE_PC_PARPORT

	select ARCH_MIGHT_HAVE_PC_SERIO

	select GENERIC_ISA_DMA_SUPPORT_BROKEN

	select BOOT_ELF32

	select BOARD_SCACHE

include/linux/compat.h

+24 −2
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/if.h>

#include <linux/fs.h>

#include <linux/aio_abi.h>	/* for aio_context_t */

#include <linux/uaccess.h>

#include <linux/unistd.h>



#include <asm/compat.h>
@@ -550,8 +551,29 @@ asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, 
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);



extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);

extern int put_compat_sigset(compat_sigset_t __user *compat,

			     const sigset_t *set, unsigned int size);



/*

 * Defined inline such that size can be compile time constant, which avoids

 * CONFIG_HARDENED_USERCOPY complaining about copies from task_struct

 */

static inline int

put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,

		  unsigned int size)

{

	/* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */

#ifdef __BIG_ENDIAN

	compat_sigset_t v;

	switch (_NSIG_WORDS) {

	case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];

	case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];

	case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];

	case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];

	}

	return copy_to_user(compat, &v, size) ? -EFAULT : 0;

#else

	return copy_to_user(compat, set, size) ? -EFAULT : 0;

#endif

}



asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,

		compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,

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