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Wed, 18 Dec 2019 00:59:59 +1100 (AEDT) Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 17 Dec 2019 05:59:40 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 17 Dec 2019 05:59:49 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 17 Dec 2019 05:59:49 -0800 Received: from [10.2.165.11] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 17 Dec 2019 13:59:48 +0000 Subject: Re: [RFC PATCH] mm/gup: try_pin_compound_head() can be static To: kbuild test robot References: <20191211025318.457113-24-jhubbard@nvidia.com> <20191217080358.q3k57ta62txvip5h@4978f4969bb8> From: John Hubbard X-Nvconfidentiality: public Message-ID: <7828a101-e422-8e2a-ef9b-9c0285065ed5@nvidia.com> Date: Tue, 17 Dec 2019 05:56:56 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20191217080358.q3k57ta62txvip5h@4978f4969bb8> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; 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Miller" , "Kirill A . Shutemov" , Mike Kravetz Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 12/17/19 12:03 AM, kbuild test robot wrote: > > Fixes: 8086d1c61970 ("mm/gup: track FOLL_PIN pages") > Signed-off-by: kbuild test robot > --- > gup.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/gup.c b/mm/gup.c > index 038b71165a761..849a6f55938e6 100644 > --- a/mm/gup.c > +++ b/mm/gup.c > @@ -75,7 +75,7 @@ static inline struct page *try_get_compound_head(struct page *page, int refs) > * @Return: the compound head page, with ref appropriately incremented, > * or NULL upon failure. > */ > -__must_check struct page *try_pin_compound_head(struct page *page, int refs) > +static __must_check struct page *try_pin_compound_head(struct page *page, int refs) > { > struct page *head = try_get_compound_head(page, > GUP_PIN_COUNTING_BIAS * refs); > Yes, it should have been declared static. And this also applies to the latest version (v11). The preferred fix would stay within 80 columns, like this: diff --git a/mm/gup.c b/mm/gup.c index c2793a86450e..39b2f683bd2e 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -75,7 +75,8 @@ static inline struct page *try_get_compound_head(struct page *page, int refs) * @Return: the compound head page, with ref appropriately incremented, * or NULL upon failure. */ -__must_check struct page *try_pin_compound_head(struct page *page, int refs) +static __must_check struct page *try_pin_compound_head(struct page *page, + int refs) { struct page *head = try_get_compound_head(page, GUP_PIN_COUNTING_BIAS * refs); thanks, -- John Hubbard NVIDIA