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LinuxKPI: Update user_access_begin for Linux v5.0.

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Check the new LINUXKPI_VERSION macro for backwards compatibility.
This patch is part of D19565

Reviewed by:	hps
Approved by:	imp (mentor), hps
MFC after:	1 week
This commit is contained in:
Johannes Lundberg 2019-05-15 17:04:12 +00:00
parent a4a9f2267e
commit 3137d2d4ec
1 changed files with 4 additions and 0 deletions
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4
sys/compat/linuxkpi/common/include/asm/uaccess.h
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@ -52,7 +52,11 @@ copy_from_user(void *to, const void *from, unsigned long n)
#define __copy_from_user(...) copy_from_user(__VA_ARGS__)
#define __copy_in_user(...) copy_from_user(__VA_ARGS__)
#if defined(LINUXKPI_VERSION) && LINUXKPI_VERSION >= 50000
#define user_access_begin(ptr, len) access_ok(ptr, len)
#else
#define user_access_begin() do { } while (0)
#endif
#define user_access_end() do { } while (0)
#define unsafe_get_user(x, ptr, err) do { \