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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-04 15:31:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-04 15:31:09 -0700
commit995177a4c75ee9b9069d5a313d90c005cf89c1b2 (patch)
tree16b7631d371cef304b1a45a6b148ca1f94a99f04 /arch
parentMerge tag 'csky-for-linus-6.0-rc1' of https://github.com/c-sky/csky-linux (diff)
parentARM: 9220/1: amba: Remove deferred device addition (diff)
downloadlinux-dev-995177a4c75ee9b9069d5a313d90c005cf89c1b2.tar.xz
linux-dev-995177a4c75ee9b9069d5a313d90c005cf89c1b2.zip
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King: "Not much this time around, the 5.20-rc1 development updates for arm are: - add KASAN support for vmalloc space on arm - some sparse fixes from Ben Dooks - rework amba device handling (so device addition isn't deferred)" * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9220/1: amba: Remove deferred device addition ARM: 9219/1: fix undeclared soft_restart ARM: 9218/1: dma-mapping: fix pointer/integer warning ARM: 9217/1: add definition of arch_irq_work_raise() ARM: 9203/1: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC ARM: 9202/1: kasan: support CONFIG_KASAN_VMALLOC
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/include/asm/irq_work.h2
-rw-r--r--arch/arm/kernel/reboot.c1
-rw-r--r--arch/arm/mm/dma-mapping.c2
-rw-r--r--arch/arm/mm/kasan_init.c6
5 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4294c0123857..53e6a1da9af5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -75,6 +75,7 @@ config ARM
select HAVE_ARCH_KFENCE if MMU && !XIP_KERNEL
select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL
+ select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_PFN_VALID
select HAVE_ARCH_SECCOMP
@@ -1419,6 +1420,7 @@ config HW_PERF_EVENTS
config ARM_MODULE_PLTS
bool "Use PLTs to allow module memory to spill over into vmalloc area"
depends on MODULES
+ select KASAN_VMALLOC if KASAN
default y
help
Allocate PLTs when loading modules so that jumps and calls whose
diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h
index 8895999834cc..3149e4dc1b54 100644
--- a/arch/arm/include/asm/irq_work.h
+++ b/arch/arm/include/asm/irq_work.h
@@ -9,4 +9,6 @@ static inline bool arch_irq_work_has_interrupt(void)
return is_smp();
}
+extern void arch_irq_work_raise(void);
+
#endif /* _ASM_ARM_IRQ_WORK_H */
diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c
index 2cb943422554..3f0d5c3dae11 100644
--- a/arch/arm/kernel/reboot.c
+++ b/arch/arm/kernel/reboot.c
@@ -10,6 +10,7 @@
#include <asm/cacheflush.h>
#include <asm/idmap.h>
#include <asm/virt.h>
+#include <asm/system_misc.h>
#include "reboot.h"
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 059cce018570..1483b6a4319d 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -709,7 +709,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
*handle = DMA_MAPPING_ERROR;
allowblock = gfpflags_allow_blocking(gfp);
- cma = allowblock ? dev_get_cma_area(dev) : false;
+ cma = allowblock ? dev_get_cma_area(dev) : NULL;
if (cma)
buf->allocator = &cma_allocator;
diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c
index 5ad0d6c56d56..29caee9c79ce 100644
--- a/arch/arm/mm/kasan_init.c
+++ b/arch/arm/mm/kasan_init.c
@@ -236,7 +236,11 @@ void __init kasan_init(void)
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
- kasan_populate_early_shadow(kasan_mem_to_shadow((void *)VMALLOC_START),
+ if (!IS_ENABLED(CONFIG_KASAN_VMALLOC))
+ kasan_populate_early_shadow(kasan_mem_to_shadow((void *)VMALLOC_START),
+ kasan_mem_to_shadow((void *)VMALLOC_END));
+
+ kasan_populate_early_shadow(kasan_mem_to_shadow((void *)VMALLOC_END),
kasan_mem_to_shadow((void *)-1UL) + 1);
for_each_mem_range(i, &pa_start, &pa_end) {