From: Juergen Gross <jgross@suse.com>
To: Borislav Petkov <bp@alien8.de>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH v4 16/16] x86/mtrr: simplify mtrr_ops initialization
Date: Sun, 30 Oct 2022 16:05:29 +0100 [thread overview]
Message-ID: <dbd5861a-aa12-ea4f-c076-974613fba51c@suse.com> (raw)
In-Reply-To: <Y15o4o8j6zbQuaQJ@zn.tnic>
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On 30.10.22 13:06, Borislav Petkov wrote:
> On Tue, Oct 04, 2022 at 10:10:23AM +0200, Juergen Gross wrote:
>> +#ifdef CONFIG_X86_64
>> +#define vendor_mtrr_ops(x) NULL
>> +#else
>> +#define vendor_mtrr_ops(x) &(x)
>> +#endif
>
> The idea is good but this is just as hacky.
>
> Just assign the correct one in each branch without this funky ifdeffery.
As the specific ops variables are available for X86_32 only, this
would require to add an "#ifdef CONFIG_X86_32" around the code block
doing the assignments. Otherwise the build would fail.
Juergen
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next prev parent reply other threads:[~2022-10-30 15:05 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 8:10 [PATCH v4 00/16] x86: make pat and mtrr independent from each other Juergen Gross
2022-10-04 8:10 ` [PATCH v4 01/16] x86/mtrr: add comment for set_mtrr_state() serialization Juergen Gross
2022-10-04 8:10 ` [PATCH v4 02/16] x86/mtrr: remove unused cyrix_set_all() function Juergen Gross
2022-10-20 14:13 ` [tip: x86/cpu] x86/mtrr: Remove " tip-bot2 for Juergen Gross
2022-10-04 8:10 ` [PATCH v4 03/16] x86/mtrr: replace use_intel() with a local flag Juergen Gross
2022-10-21 17:19 ` Borislav Petkov
2022-10-21 18:05 ` Juergen Gross
2022-10-21 18:10 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 04/16] x86/mtrr: rename prepare_set() and post_set() Juergen Gross
2022-10-04 8:10 ` [PATCH v4 05/16] x86/mtrr: split MTRR specific handling from cache dis/enabling Juergen Gross
2022-10-26 9:24 ` Borislav Petkov
2022-10-26 11:42 ` Juergen Gross
2022-10-04 8:10 ` [PATCH v4 06/16] x86: move some code out of arch/x86/kernel/cpu/mtrr Juergen Gross
2022-10-04 8:10 ` [PATCH v4 07/16] x86/mtrr: split generic_set_all() Juergen Gross
2022-10-26 10:37 ` Borislav Petkov
2022-10-26 11:43 ` Juergen Gross
2022-10-26 12:10 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 08/16] x86/mtrr: remove set_all callback from struct mtrr_ops Juergen Gross
2022-10-27 9:18 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 09/16] x86/mtrr: simplify mtrr_bp_init() Juergen Gross
2022-10-27 9:32 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 10/16] x86/mtrr: get rid of mtrr_enabled bool Juergen Gross
2022-10-04 8:10 ` [PATCH v4 11/16] x86/mtrr: let cache_aps_delayed_init replace mtrr_aps_delayed_init Juergen Gross
2022-10-27 12:18 ` Borislav Petkov
2022-10-27 13:08 ` Juergen Gross
2022-10-04 8:10 ` [PATCH v4 12/16] x86/mtrr: add a stop_machine() handler calling only cache_cpu_init() Juergen Gross
2022-10-29 10:07 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 13/16] x86: decouple pat and mtrr handling Juergen Gross
2022-10-29 12:15 ` Borislav Petkov
2022-10-04 8:10 ` [PATCH v4 14/16] x86: switch cache_ap_init() to hotplug callback Juergen Gross
2022-10-04 8:10 ` [PATCH v4 15/16] x86: do MTRR/PAT setup on all secondary CPUs in parallel Juergen Gross
2022-10-04 8:10 ` [PATCH v4 16/16] x86/mtrr: simplify mtrr_ops initialization Juergen Gross
2022-10-30 12:06 ` Borislav Petkov
2022-10-30 15:05 ` Juergen Gross [this message]
2022-10-30 16:39 ` Borislav Petkov
2022-10-30 17:48 ` Borislav Petkov
2022-11-01 9:48 ` Juergen Gross
2022-11-01 10:02 ` Borislav Petkov
2022-10-19 7:18 ` [PATCH v4 00/16] x86: make pat and mtrr independent from each other Juergen Gross
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