linux-kernel - Re: [PATCH 2/8] x86/platform/uv: Return UV Hubless System Type

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Message-ID: <20190903064914.GA9914@infradead.org>
Date:   Mon, 2 Sep 2019 23:49:14 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Mike Travis <mike.travis@....com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Borislav Petkov <bp@...en8.de>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>,
        Hedi Berriche <hedi.berriche@....com>,
        Steve Wahl <steve.wahl@....com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 2/8] x86/platform/uv: Return UV Hubless System Type

>  static inline bool is_early_uv_system(void)
>  {
>  	return !((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab);

No need for the inner braces here.

But woudn't this be nicer as:

	return efi.uv_systab != EFI_INVALID_TABLE_ADDR && efi.uv_systab;

anyway?

> +#define is_uv_hubless _is_uv_hubless

Why the weird macro indirection?

> -static inline int is_uv_hubless(void)	{ return 0; }
> +static inline int _is_uv_hubless(int uv) { return 0; }
> +#define is_uv_hubless _is_uv_hubless

And here again.