Merge tag 'mips_fixes_5.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:

 - Declare ginvt() __always_inline due to its use of an argument as an
   inline asm immediate.

 - A VDSO build fix following Kbuild changes made this cycle.

 - A fix for boot failures on txx9 systems following memory
   initialization changes made this cycle.

 - Bounds check virt_addr_valid() to prevent it spuriously indicating
   that bogus addresses are valid, in turn fixing hardened usercopy
   failures that have been present since v4.12.

 - Build uImage.gz for pistachio systems by default, since this is the
   image we need in order to actually boot on a board.

 - Remove an unused variable in our uprobes code.

* tag 'mips_fixes_5.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: uprobes: remove set but not used variable 'epc'
  MIPS: pistachio: Build uImage.gz by default
  MIPS: Make virt_addr_valid() return bool
  MIPS: Bounds check virt_addr_valid
  MIPS: TXx9: Fix boot crash in free_initmem()
  MIPS: remove a space after -I to cope with header search paths for VDSO
  MIPS: mark ginvt() as __always_inline

7 files changed, 10 insertions, 13 deletions

diff --git a/arch/mips/include/asm/ginvt.h b/arch/mips/include/asm/ginvt.h
index 49c6dbe37338..6eb7c2b94dc7 100644
--- a/arch/mips/include/asm/ginvt.h
+++ b/arch/mips/include/asm/ginvt.h
@@ -19,7 +19,7 @@ _ASM_MACRO_1R1I(ginvt, rs, type,
 # define _ASM_SET_GINV
 #endif
 
-static inline void ginvt(unsigned long addr, enum ginvt_type type)
+static __always_inline void ginvt(unsigned long addr, enum ginvt_type type)
 {
 	asm volatile(
 		".set	push\n"
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 6b31c93b5eaa..a25643d258cb 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -249,7 +249,7 @@ static inline int pfn_valid(unsigned long pfn)
 #define virt_to_pfn(kaddr)   	PFN_DOWN(virt_to_phys((void *)(kaddr)))
 #define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))
 
-extern int __virt_addr_valid(const volatile void *kaddr);
+extern bool __virt_addr_valid(const volatile void *kaddr);
 #define virt_addr_valid(kaddr)						\
 	__virt_addr_valid((const volatile void *) (kaddr))
 
diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index 4aaff3b3175c..6dbe4eab0a0e 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -112,9 +112,6 @@ int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs)
 	 */
 	aup->resume_epc = regs->cp0_epc + 4;
 	if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) {
-		unsigned long epc;
-
-		epc = regs->cp0_epc;
 		__compute_return_epc_for_insn(regs,
 			(union mips_instruction) aup->insn[0]);
 		aup->resume_epc = regs->cp0_epc;
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 2f616ebeb7e0..50ee7213b432 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -201,8 +201,13 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
 	return ret;
 }
 
-int __virt_addr_valid(const volatile void *kaddr)
+bool __virt_addr_valid(const volatile void *kaddr)
 {
+	unsigned long vaddr = (unsigned long)vaddr;
+
+	if ((vaddr < PAGE_OFFSET) || (vaddr >= MAP_BASE))
+		return false;
+
 	return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
 }
 EXPORT_SYMBOL_GPL(__virt_addr_valid);
diff --git a/arch/mips/pistachio/Platform b/arch/mips/pistachio/Platform
index d80cd612df1f..c3592b374ad2 100644
--- a/arch/mips/pistachio/Platform
+++ b/arch/mips/pistachio/Platform
@@ -6,3 +6,4 @@ cflags-$(CONFIG_MACH_PISTACHIO)		+=				\
 		-I$(srctree)/arch/mips/include/asm/mach-pistachio
 load-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff80400000
 zload-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff81000000
+all-$(CONFIG_MACH_PISTACHIO)		:= uImage.gz
diff --git a/arch/mips/pnx833x/Platform b/arch/mips/pnx833x/Platform
index 6b1a847d593f..287260669551 100644
--- a/arch/mips/pnx833x/Platform
+++ b/arch/mips/pnx833x/Platform
@@ -1,5 +1,5 @@
 # NXP STB225
 platform-$(CONFIG_SOC_PNX833X)	+= pnx833x/
-cflags-$(CONFIG_SOC_PNX833X)	+= -I $(srctree)/arch/mips/include/asm/mach-pnx833x
+cflags-$(CONFIG_SOC_PNX833X)	+= -I$(srctree)/arch/mips/include/asm/mach-pnx833x
 load-$(CONFIG_NXP_STB220)	+= 0xffffffff80001000
 load-$(CONFIG_NXP_STB225)	+= 0xffffffff80001000
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 46537c2ca86a..6d0fd0e055b4 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -33,7 +33,6 @@
 #include <asm/time.h>
 #include <asm/reboot.h>
 #include <asm/r4kcache.h>
-#include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/txx9/generic.h>
 #include <asm/txx9/pci.h>
@@ -343,11 +342,6 @@ void __init prom_init(void)
 
 void __init prom_free_prom_memory(void)
 {
-	unsigned long saddr = PAGE_SIZE;
-	unsigned long eaddr = __pa_symbol(&_text);
-
-	if (saddr < eaddr)
-		free_init_pages("prom memory", saddr, eaddr);
 }
 
 const char *get_system_type(void)