[PATCH] arm64: errata: Update stale comment

[PATCH] arm64: errata: Update stale comment

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

Commit 73f381660959 ("arm64: Advertise mitigation of Spectre-v2, or lack
thereof") renamed the caller of the install_bp_hardening_cb() function
but forgot to update a comment, which can be confusing when trying to
follow the code flow.

Fixes: 73f381660959 ("arm64: Advertise mitigation of Spectre-v2, or lack thereof")
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/kernel/cpu_errata.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 1e43ba5c79b7..f593f4cffc0d 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -128,8 +128,8 @@ static void install_bp_hardening_cb(bp_hardening_cb_t fn,
 	int cpu, slot = -1;
 
 	/*
-	 * enable_smccc_arch_workaround_1() passes NULL for the hyp_vecs
-	 * start/end if we're a guest. Skip the hyp-vectors work.
+	 * detect_harden_bp_fw() passes NULL for the hyp_vecs start/end if
+	 * we're a guest. Skip the hyp-vectors work.
 	 */
 	if (!hyp_vecs_start) {
 		__this_cpu_write(bp_hardening_data.fn, fn);
-- 
2.23.0


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Re: [PATCH] arm64: errata: Update stale comment

[Marc Zyngier]

On Mon, 23 Sep 2019 11:12:29 +0200
Thierry Reding <thierry.reding@gmail.com> wrote:

> From: Thierry Reding <treding@nvidia.com>
> 
> Commit 73f381660959 ("arm64: Advertise mitigation of Spectre-v2, or lack
> thereof") renamed the caller of the install_bp_hardening_cb() function
> but forgot to update a comment, which can be confusing when trying to
> follow the code flow.
> 
> Fixes: 73f381660959 ("arm64: Advertise mitigation of Spectre-v2, or lack thereof")
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>  arch/arm64/kernel/cpu_errata.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
> index 1e43ba5c79b7..f593f4cffc0d 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -128,8 +128,8 @@ static void install_bp_hardening_cb(bp_hardening_cb_t fn,
>  	int cpu, slot = -1;
>  
>  	/*
> -	 * enable_smccc_arch_workaround_1() passes NULL for the hyp_vecs
> -	 * start/end if we're a guest. Skip the hyp-vectors work.
> +	 * detect_harden_bp_fw() passes NULL for the hyp_vecs start/end if
> +	 * we're a guest. Skip the hyp-vectors work.
>  	 */
>  	if (!hyp_vecs_start) {
>  		__this_cpu_write(bp_hardening_data.fn, fn);

Acked-by: Marc Zyngier <maz@kernel.org>

-- 
Without deviation from the norm, progress is not possible.

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