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

4 files changed, 14 insertions, 4 deletions

diff --git a/arch/mips/ath25/board.c b/arch/mips/ath25/board.c
index 9ab48ff80c1c..6d11ae581ea7 100644
--- a/arch/mips/ath25/board.c
+++ b/arch/mips/ath25/board.c
@@ -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) {
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 5b3a3f6a9ad3..d99f5242169e 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -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);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 9d41732a9146..159e83add4bb 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -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");
 }
 
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index bc2fdbfa8223..72af0c183969 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -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