mainline inclusion
from mainline-v5.19
commit b0f3bdc0
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5OHOB
CVE: NA

--------------------------------

In file ptrace.c, function fpr_set does not copy fcsr data from ubuf
to kbuf. That's the reason why fcsr cannot be modified by ptrace.

This patch fixs this problem and allows users using ptrace to modify
the fcsr.
Co-developed-by: NXu Li <lixu@loongson.cn>
Signed-off-by: NQi Hu <huqi@loongson.cn>
Signed-off-by: NHuacai Chen <chenhuacai@loongson.cn>