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avr32: fix copy_from_user()

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really ugly, but apparently avr32 compilers turns access_ok() into
something so bad that they want it in assembler.  Left that way,
zeroing added in inline wrapper.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-09-09 19:28:23 -04:00
parent e98b9e37ae
commit 8630c32275
3 changed files with 13 additions and 4 deletions
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2
arch/avr32/kernel/avr32_ksyms.c
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@@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page);
/*
* Userspace access stuff.
*/
EXPORT_SYMBOL(copy_from_user);
EXPORT_SYMBOL(___copy_from_user);
EXPORT_SYMBOL(copy_to_user);
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(strncpy_from_user);