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

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 & 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)"

* 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.
This commit is contained in:
Linus Torvalds 2019-03-19 10:50:15 -07:00
commit b7a42146dc
5 changed files with 13 additions and 17 deletions

View File

@ -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;

View File

@ -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"

View File

@ -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 */

View File

@ -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

View File

@ -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)