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authorDongxu Sun <sundongxu3@huawei.com>2023-03-17 20:49:15 +0800
committerWill Deacon <will@kernel.org>2023-04-12 09:41:48 +0100
commit97b5576b01166a6aed6a267df059128e5d98b15e (patch)
tree537bba3ce9a67202fb21aac0f8cf345ced9acfca
parent19e99e7d59bc421373e82af818197576b1a3940f (diff)
arm64/sme: Fix some comments of ARM SME
When TIF_SME is clear, fpsimd_restore_current_state will disable SME trap during ret_to_user, then SME access trap is impossible in userspace, not SVE. Besides, fix typo: alocated->allocated. Signed-off-by: Dongxu Sun <sundongxu3@huawei.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230317124915.1263-5-sundongxu3@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
-rw-r--r--arch/arm64/kernel/fpsimd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 9e7e50a0fd76..2fbafa5cc7ac 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -299,7 +299,7 @@ void task_set_vl_onexec(struct task_struct *task, enum vec_type type,
/*
* TIF_SME controls whether a task can use SME without trapping while
* in userspace, when TIF_SME is set then we must have storage
- * alocated in sve_state and sme_state to store the contents of both ZA
+ * allocated in sve_state and sme_state to store the contents of both ZA
* and the SVE registers for both streaming and non-streaming modes.
*
* If both SVCR.ZA and SVCR.SM are disabled then at any point we
@@ -1477,7 +1477,7 @@ void do_sve_acc(unsigned long esr, struct pt_regs *regs)
*
* TIF_SME should be clear on entry: otherwise, fpsimd_restore_current_state()
* would have disabled the SME access trap for userspace during
- * ret_to_user, making an SVE access trap impossible in that case.
+ * ret_to_user, making an SME access trap impossible in that case.
*/
void do_sme_acc(unsigned long esr, struct pt_regs *regs)
{