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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-25 11:23:27 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-25 11:23:27 +0100
commit1d6a81519d9d27b99bca638d14eca63c31111afd (patch)
tree8063d42442b46bac5e3defa59de277fecc524ad6 /arch/mips/kernel/relocate.c
parent386ce1d748edfdf57f21310647e2d42dd5f737f2 (diff)
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
Merge v5.11-rc5 into usb-next
We need the fixes in here and this resolves a merge issue with drivers/usb/gadget/udc/bdc/Kconfig. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/mips/kernel/relocate.c')
-rw-r--r--arch/mips/kernel/relocate.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
index 47aeb3350a76..0e365b7c742d 100644
--- a/arch/mips/kernel/relocate.c
+++ b/arch/mips/kernel/relocate.c
@@ -187,8 +187,14 @@ static int __init relocate_exception_table(long offset)
static inline __init unsigned long rotate_xor(unsigned long hash,
const void *area, size_t size)
{
- size_t i;
- unsigned long *ptr = (unsigned long *)area;
+ const typeof(hash) *ptr = PTR_ALIGN(area, sizeof(hash));
+ size_t diff, i;
+
+ diff = (void *)ptr - area;
+ if (unlikely(size < diff + sizeof(hash)))
+ return hash;
+
+ size = ALIGN_DOWN(size - diff, sizeof(hash));
for (i = 0; i < size / sizeof(hash); i++) {
/* Rotate by odd number of bits and XOR. */