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authorLinus Torvalds <torvalds@linux-foundation.org>2021-10-25 10:28:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-10-25 10:28:52 -0700
commitc2b43854aad9e52b422e6c6342a1da2261f98fa5 (patch)
tree9bc64450f5ebb52c8cdd3a23ae5b4155b2d4de61 /arch/arm/kernel
parent4862649f16e79299b4f82a8e13dd8f9e5abcaa25 (diff)
parent00568b8a6364e15009b345b462e927e0b9fc2bb9 (diff)
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King: - Fix clang-related relocation warning in futex code - Fix incorrect use of get_kernel_nofault() - Fix bad code generation in __get_user_check() when kasan is enabled - Ensure TLB function table is correctly aligned - Remove duplicated string function definitions in decompressor - Fix link-time orphan section warnings - Fix old-style function prototype for arch_init_kprobes() - Only warn about XIP address when not compile testing - Handle BE32 big endian for keystone2 remapping * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9148/1: handle CONFIG_CPU_ENDIAN_BE32 in arch/arm/kernel/head.S ARM: 9141/1: only warn about XIP address when not compile testing ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype ARM: 9138/1: fix link warning with XIP + frame-pointer ARM: 9134/1: remove duplicate memcpy() definition ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned ARM: 9132/1: Fix __get_user_check failure with ARM KASAN images ARM: 9125/1: fix incorrect use of get_kernel_nofault() ARM: 9122/1: select HAVE_FUTEX_CMPXCHG
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/head.S4
-rw-r--r--arch/arm/kernel/traps.c2
-rw-r--r--arch/arm/kernel/vmlinux-xip.lds.S6
3 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 29070eb8df7d..3fc7f9750ce4 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -253,7 +253,7 @@ __create_page_tables:
add r0, r4, #KERNEL_OFFSET >> (SECTION_SHIFT - PMD_ORDER)
ldr r6, =(_end - 1)
adr_l r5, kernel_sec_start @ _pa(kernel_sec_start)
-#ifdef CONFIG_CPU_ENDIAN_BE8
+#if defined CONFIG_CPU_ENDIAN_BE8 || defined CONFIG_CPU_ENDIAN_BE32
str r8, [r5, #4] @ Save physical start of kernel (BE)
#else
str r8, [r5] @ Save physical start of kernel (LE)
@@ -266,7 +266,7 @@ __create_page_tables:
bls 1b
eor r3, r3, r7 @ Remove the MMU flags
adr_l r5, kernel_sec_end @ _pa(kernel_sec_end)
-#ifdef CONFIG_CPU_ENDIAN_BE8
+#if defined CONFIG_CPU_ENDIAN_BE8 || defined CONFIG_CPU_ENDIAN_BE32
str r3, [r5, #4] @ Save physical end of kernel (BE)
#else
str r3, [r5] @ Save physical end of kernel (LE)
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 4a7edc6e848f..195dff58bafc 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -136,7 +136,7 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,
for (p = first, i = 0; i < 8 && p < top; i++, p += 4) {
if (p >= bottom && p < top) {
unsigned long val;
- if (get_kernel_nofault(val, (unsigned long *)p))
+ if (!get_kernel_nofault(val, (unsigned long *)p))
sprintf(str + i * 9, " %08lx", val);
else
sprintf(str + i * 9, " ????????");
diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index 50136828f5b5..f14c2360ea0b 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -40,6 +40,10 @@ SECTIONS
ARM_DISCARD
*(.alt.smp.init)
*(.pv_table)
+#ifndef CONFIG_ARM_UNWIND
+ *(.ARM.exidx) *(.ARM.exidx.*)
+ *(.ARM.extab) *(.ARM.extab.*)
+#endif
}
. = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
@@ -172,7 +176,7 @@ ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
ASSERT((_end - __bss_start) >= 12288, ".bss too small for CONFIG_XIP_DEFLATED_DATA")
#endif
-#ifdef CONFIG_ARM_MPU
+#if defined(CONFIG_ARM_MPU) && !defined(CONFIG_COMPILE_TEST)
/*
* Due to PMSAv7 restriction on base address and size we have to
* enforce minimal alignment restrictions. It was seen that weaker