Merge tag 'mips_fixes_5.1_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

torvalds · torvalds · commit b7a42146dca3 · 2019-03-19T10:50:15.000-07:00
Pull MIPS fixes from Paul Burton:
 "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 &amp; 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 &amp; 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)"

* tag 'mips_fixes_5.1_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: Remove custom MIPS32 __kernel_fsid_t type
  mips: bcm47xx: Enable USB power on Netgear WNDR3400v2
  MIPS: Fix kernel crash for R6 in jump label branch function
  MIPS: Ensure ELF appended dtb is relocated
  mips: loongson64: lemote-2f: Add IRQF_NO_SUSPEND to "cascade" irqaction.
diff --git a/arch/mips/bcm47xx/workarounds.c b/arch/mips/bcm47xx/workarounds.c
@@ -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;
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h
@@ -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"
diff --git a/arch/mips/include/uapi/asm/posix_types.h b/arch/mips/include/uapi/asm/posix_types.h
@@ -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 */
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
@@ -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
diff --git a/arch/mips/loongson64/lemote-2f/irq.c b/arch/mips/loongson64/lemote-2f/irq.c
@@ -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)
