Stafford Horne e9e4d1fb45 openrisc: Add clone3 ABI wrapper ... [ Upstream commit 433fe39f674d58bc7a3e8254a5d2ffc290b7e04e ] Like fork and clone the clone3 syscall needs a wrapper to save callee saved registers, which is required by the OpenRISC ABI. This came up after auditing code following a discussion with Rob Landley and Arnd Bergmann [0]. Tested with the clone3 kselftests and there were no issues. [0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944 Fixes: 07e83dfbe1 ("openrisc: Enable the clone3 syscall") Cc: Rob Landley <rob@landley.net> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-01-27 10:54:06 +01:00
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