riscv: refactor __get_user and __put_user

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Add new __get_user_nocheck and __put_user_nocheck that switch on the size
and call the actual inline assembly helpers, and move the uaccess enable
/ disable into the actual __get_user and __put_user.  This prepares for
natively implementing __get_kernel_nofault and __put_kernel_nofault.

Also don't bother with the deprecated register keyword for the error
return.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Christoph Hellwig 2020-09-07 07:58:23 +02:00 • committed by Palmer Dabbelt

parent 11129e8ed4

commit f289a34811

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1 changed files with 52 additions and 42 deletions

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arch/riscv/include/asm/uaccess.h

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