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authorRussell King2018-07-09 10:28:12 +0100
committerRussell King2018-08-02 17:41:38 +0100
commitb1cd0a14806321721aae45f5446ed83a3647c914 (patch)
treed97f31f577fde389b410224139b342e9538c2cc5 /arch/cris/arch-v10
parentd09fbb327d670737ab40fd8bbb0765ae06b8b739 (diff)
ARM: spectre-v1: use get_user() for __get_user()
Fixing __get_user() for spectre variant 1 is not sane: we would have to add address space bounds checking in order to validate that the location should be accessed, and then zero the address if found to be invalid. Since __get_user() is supposed to avoid the bounds check, and this is exactly what get_user() does, there's no point having two different implementations that are doing the same thing. So, when the Spectre workarounds are required, make __get_user() an alias of get_user(). Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/cris/arch-v10')
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