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authorVincent Chen <vincent.chen@sifive.com>2019-08-14 11:23:53 +0300
committerPaul Walmsley <paul.walmsley@sifive.com>2019-08-14 23:20:46 +0300
commit69703eb9a8ae28a46cd5bce7d69ceeef6273a104 (patch)
tree6ac4d72a059e1d5eec05d0f2d0a62844d5ff0fbb /arch
parent8ac71d7e46b94a4fc8ffc6f1c88004cdf24459e8 (diff)
downloadlinux-69703eb9a8ae28a46cd5bce7d69ceeef6273a104.tar.xz
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 'arch')
-rw-r--r--arch/riscv/include/asm/switch_to.h2
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,