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x86/uaccess: Remove unused __addr_ok() macro 

This was caught while staring at the whole {set,get}_fs() machinery.

It's last user, the 32-bit version of strnlen_user() went away with

  5723aa993d ("x86: use the new generic strnlen_user() function")

so drop it.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: the arch/x86 maintainers <x86@kernel.org>
Cc: "Tobin C. Harding" <tobin@kernel.org>
Link: https://lkml.kernel.org/r/20190225191109.7671-1-bp@alien8.de
This commit is contained in:
Borislav Petkov 2019-02-25 20:08:27 +01:00
parent f91fecc09e
commit 2e7614c073
1 changed files with 0 additions and 3 deletions
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3
arch/x86/include/asm/uaccess.h
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@ -35,10 +35,7 @@ static inline void set_fs(mm_segment_t fs)
} }
#define segment_eq(a, b) ((a).seg == (b).seg) #define segment_eq(a, b) ((a).seg == (b).seg)
#define user_addr_max() (current->thread.addr_limit.seg) #define user_addr_max() (current->thread.addr_limit.seg)
#define __addr_ok(addr) \
((unsigned long __force)(addr) < user_addr_max())
/* /*
* Test whether a block of memory is a valid user space address. * Test whether a block of memory is a valid user space address.