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Re: [PATCH] x86: fix incorrect return value for has_if_pschange_mc
- To: Kevin Lampis <kevin.lampis@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Fri, 9 Jan 2026 11:48:11 +0000
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, jbeulich@xxxxxxxx, roger.pau@xxxxxxxxxx
- Delivery-date: Fri, 09 Jan 2026 11:48:22 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 09/01/2026 11:43 am, Kevin Lampis wrote:
> A return value is missing from this function leading to safe CPUs being
> marked as vulnerable.
It's not really a return value that's missing. It's just that the Atom
block used to fall through into the Phi block to get to it's return
false, and this was accidentally dropped with the Phi removal.
Fixes: 85191cf32180 ("x86: drop Xeon Phi support")
> Signed-off-by: Kevin Lampis <kevin.lampis@xxxxxxxxxx>
Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
I can tweak the commit message on commit.
~Andrew
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