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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[sfrench/cifs-2.6.git]
/
arch
/
arm64
/
include
/
asm
/
asm-uaccess.h
diff --git
a/arch/arm64/include/asm/asm-uaccess.h
b/arch/arm64/include/asm/asm-uaccess.h
index df411f3e083ce7074daedf65c8bb3ed4aed4dc31..ecd9788cd29881074dd04bb9708eddef286677a6 100644
(file)
--- a/
arch/arm64/include/asm/asm-uaccess.h
+++ b/
arch/arm64/include/asm/asm-uaccess.h
@@
-62,4
+62,13
@@
alternative_if ARM64_ALT_PAN_NOT_UAO
alternative_else_nop_endif
.endm
+/*
+ * Remove the address tag from a virtual address, if present.
+ */
+ .macro clear_address_tag, dst, addr
+ tst \addr, #(1 << 55)
+ bic \dst, \addr, #(0xff << 56)
+ csel \dst, \dst, \addr, eq
+ .endm
+
#endif