Unverified Commit ec86e545 authored by Paul Burton's avatar Paul Burton
Browse files

Merge tag 'mips_fixes_5.1_1' into mips-next 



A small batch of MIPS fixes for 5.1:

- An interrupt masking fix for Loongson-based Lemote 2F systems (fixing
  a regression from v3.19).

- A relocation fix for configurations in which the devicetree is stored
  in an ELF section (fixing a regression from v4.7).

- Fix jump labels for MIPSr6 kernels where they previously could
  inadvertently place a control transfer instruction in a forbidden slot
  & take unexpected exceptions (fixing MIPSr6 support added in v4.0).

- Extend an existing USB power workaround for the Netgear WNDR3400 to v2
  boards in addition to the v3 ones that already used it.

- Remove the custom MIPS32 definition of __kernel_fsid_t to make it
  consistent with MIPS64 & every other architecture, in particular
  resolving issues for code which tries to print the val field whose
  type previously differed (though had identical memory layout).

Merged into mips-next to gain the MIPSr6 jump label fix before enabling
jump labels by default for generic kernel builds.

Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
parents e6046b5e f6cab793

arch/mips/bcm47xx/workarounds.c

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ void __init bcm47xx_workarounds(void) 
	case BCM47XX_BOARD_NETGEAR_WNR3500L:

		bcm47xx_workarounds_enable_usb_power(12);

		break;

	case BCM47XX_BOARD_NETGEAR_WNDR3400V2:

	case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:

		bcm47xx_workarounds_enable_usb_power(21);

		break;

arch/mips/include/asm/jump_label.h

+4 −4
Original line number Diff line number Diff line
@@ -21,15 +21,15 @@ 
#endif



#ifdef CONFIG_CPU_MICROMIPS

#define NOP_INSN "nop32"

#define B_INSN "b32"

#else

#define NOP_INSN "nop"

#define B_INSN "b"

#endif



static __always_inline bool arch_static_branch(struct static_key *key, bool branch)

{

	asm_volatile_goto("1:\t" NOP_INSN "\n\t"

		"nop\n\t"

	asm_volatile_goto("1:\t" B_INSN " 2f\n\t"

		"2:\tnop\n\t"

		".pushsection __jump_table,  \"aw\"\n\t"

		WORD_INSN " 1b, %l[l_yes], %0\n\t"

		".popsection\n\t"

arch/mips/include/uapi/asm/posix_types.h

+0 −7
Original line number Diff line number Diff line
@@ -21,13 +21,6 @@ 
typedef long		__kernel_daddr_t;

#define __kernel_daddr_t __kernel_daddr_t



#if (_MIPS_SZLONG == 32)

typedef struct {

	long	val[2];

} __kernel_fsid_t;

#define __kernel_fsid_t __kernel_fsid_t

#endif



#include <asm-generic/posix_types.h>



#endif /* _ASM_POSIX_TYPES_H */

arch/mips/kernel/vmlinux.lds.S

+7 −5
Original line number Diff line number Diff line
@@ -140,6 +140,13 @@ SECTIONS 
	PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)

#endif



#ifdef CONFIG_MIPS_ELF_APPENDED_DTB

	.appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {

		*(.appended_dtb)

		KEEP(*(.appended_dtb))

	}

#endif



#ifdef CONFIG_RELOCATABLE

	. = ALIGN(4);
@@ -164,11 +171,6 @@ SECTIONS 
	__appended_dtb = .;

	/* leave space for appended DTB */

	. += 0x100000;

#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)

	.appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {

		*(.appended_dtb)

		KEEP(*(.appended_dtb))

	}

#endif

	/*

	 * Align to 64K in attempt to eliminate holes before the

arch/mips/loongson64/lemote-2f/irq.c

+1 −1
Original line number Diff line number Diff line
@@ -103,7 +103,7 @@ static struct irqaction ip6_irqaction = { 
static struct irqaction cascade_irqaction = {

	.handler = no_action,

	.name = "cascade",

	.flags = IRQF_NO_THREAD,

	.flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND,

};



void __init mach_init_irq(void)

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