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| author |   Vincent Chen <vincent.chen@sifive.com> | 2019-08-14 16:23:53 +0800 |
|---|---|---|
| committer |   Paul Walmsley <paul.walmsley@sifive.com> | 2019-08-14 13:20:46 -0700 |
| commit | 69703eb9a8ae28a46cd5bce7d69ceeef6273a104 (patch) | |
| tree | 6ac4d72a059e1d5eec05d0f2d0a62844d5ff0fbb /arch/riscv/include/asm/switch_to.h | |
| parent | riscv: Correct the initialized flow of FP register (diff) | |
| download | linux-dev-69703eb9a8ae28a46cd5bce7d69ceeef6273a104.tar.xz linux-dev-69703eb9a8ae28a46cd5bce7d69ceeef6273a104.zip | |
riscv: Make __fstate_clean() work correctly.
Make the __fstate_clean() function correctly set the
state of sstatus.FS in pt_regs to SR_FS_CLEAN.
Fixes: 7db91e57a0acd ("RISC-V: Task implementation")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[paul.walmsley@sifive.com: expanded "Fixes" commit ID]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/riscv/include/asm/switch_to.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h index 949d9cd91dec..f0227bdce0f0 100644 --- a/arch/riscv/include/asm/switch_to.h +++ b/arch/riscv/include/asm/switch_to.h @@ -16,7 +16,7 @@ extern void __fstate_restore(struct task_struct *restore_from); static inline void __fstate_clean(struct pt_regs *regs) { - regs->sstatus |= (regs->sstatus & ~(SR_FS)) | SR_FS_CLEAN; + regs->sstatus = (regs->sstatus & ~SR_FS) | SR_FS_CLEAN; } static inline void fstate_off(struct task_struct *task, |