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LoongArch: Fix hw_breakpoint_control() for watchpoints
authorHuacai Chen <chenhuacai@loongson.cn>
Sat, 26 Aug 2023 14:21:57 +0000 (22:21 +0800)
committerHuacai Chen <chenhuacai@loongson.cn>
Sat, 26 Aug 2023 14:21:57 +0000 (22:21 +0800)
commit9730870b484e9de852b51df08a8b357b1129489e
tree5f327e4f9a1fcfd5d89ad6ce3bfa9fbe40b832c9tree | snapshot
parent656f9aec07dba7c61d469727494a5d1b18d0bef4commit | diff
LoongArch: Fix hw_breakpoint_control() for watchpoints

In hw_breakpoint_control(), encode_ctrl_reg() has already encoded the
MWPnCFG3_LoadEn/MWPnCFG3_StoreEn bits in info->ctrl. We don't need to
add (1 << MWPnCFG3_LoadEn | 1 << MWPnCFG3_StoreEn) unconditionally.

Otherwise we can't set read watchpoint and write watchpoint separately.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
arch/loongarch/kernel/hw_breakpoint.c diff | blob | history
Domain: System / Kernel;