s390: use generic strncpy/strnlen from_user

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The s390 variant of strncpy_from_user() is slightly faster than the
generic variant, however convert to the generic variant now to follow
most if not all other architectures.

Converting to the generic variant was already considered a couple of
years ago. See commit f5c8b96010 ("s390/uaccess: use sane length for
__strncpy_from_user()").

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

...

This commit is contained in:

Heiko Carstens 2021-07-22 22:07:30 +02:00 • committed by Arnd Bergmann

parent b26b181651

commit e93a1cb8d2

3 changed files with 4 additions and 68 deletions

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2

arch/s390/Kconfig

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18

arch/s390/include/asm/uaccess.h

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52

arch/s390/lib/uaccess.c

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