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Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Link: https://lore.kernel.org/r/20230129092357.3143-1-liubo03@inspur.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>