arm64: Remove orphaned __addr_ok() definition (db413b51) · Commits · 戴 / test

Since commit ("arm64: use generic strnlen_user and strncpy_from_user functions"), the definition of __addr_ok() has been languishing unused; eradicate the sucker. CC: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:

Robin Murphy <robin.murphy@arm.com> Signed-off-by:

Will Deacon <will.deacon@arm.com>

arch/arm64/include/asm/uaccess.h

+0 −13

Original line number	Diff line number	Diff line
		@@ -80,19 +80,6 @@ static inline void set_fs(mm_segment_t fs)

		#define segment_eq(a, b) ((a) == (b))

		/*
		* Return 1 if addr < current->addr_limit, 0 otherwise.
		*/
		#define __addr_ok(addr) \
		({ \
		unsigned long flag; \
		asm("cmp %1, %0; cset %0, lo" \
		: "=&r" (flag) \
		: "r" (addr), "0" (current_thread_info()->addr_limit) \
		: "cc"); \
		flag; \
		})

		/*
		* Test whether a block of memory is a valid user space address.
		* Returns 1 if the range is valid, 0 otherwise.

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