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Re: [PATCH v2] x86/PV: rename a local variable in pv_emulate_gate_op()
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 2 Jun 2026 15:39:30 +0200
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>, Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 02 Jun 2026 13:39:38 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 02.06.2026 15:29, Andrew Cooper wrote:
> On 02/06/2026 2:20 pm, Jan Beulich wrote:
>> ... shadowing a function scope one, thus violating Misra C:2012 rule 5.3
>> ("An identifier declared in an inner scope shall not hide an identifier
>> declared in an outer scope"). No difference in generated code.
>>
>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> ---
>> Technically, as the outer scope "rc" isn't used again later, we could
>> simply drop the inner decl. That seemed more error prone to me, though.
>
> But it's consistent with how we use this pattern and naming for
> injecting pagefaults elsewhere.
>
> left (as in remaining) is a complicated name to use, because it's
> ambiguous with left (vs right), but this is not a context where the
> meaning is clear (e.g. the sort functions).
>
> I think deleting the inner rc is the better way to go here.
Well, okay, can do, but: Couldn't you have said so on v1 already, so I
wouldn't have needed to make a v3 right after sending v2? Iirc you
pointed out the conflict with Teddy's fix, so you must have looked at
v1 ...
Jan
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