diff options
| author | Guo Ren <[email protected]> | 2021-09-24 15:33:38 +0800 |
|---|---|---|
| committer | Guo Ren <[email protected]> | 2021-10-16 07:20:12 +0800 |
| commit | af89ebaa64de726ca0a39bbb0bf0c81a1f43ad50 (patch) | |
| tree | 42259e29611ea2266daeedb158aae45af783ba85 /drivers/message/fusion/lsi/mpi_raid.h | |
| parent | fbd63c08cdcca5fb1315aca3172b3c9c272cfb4f (diff) | |
csky: Fixup regs.sr broken in ptrace
gpr_get() return the entire pt_regs (include sr) to userspace, if we
don't restore the C bit in gpr_set, it may break the ALU result in
that context. So the C flag bit is part of gpr context, that's why
riscv totally remove the C bit in the ISA. That makes sr reg clear
from userspace to supervisor privilege.
Signed-off-by: Guo Ren <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
Diffstat (limited to 'drivers/message/fusion/lsi/mpi_raid.h')
0 files changed, 0 insertions, 0 deletions