linux-kernel - RE: [EXTERNAL] [PATCH 3/9] qed: avoid truncating work queue length

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Date: Wed, 27 Mar 2024 17:08:21 +0000
From: Subbaraya Sundeep Bhatta <sbhatta@...vell.com>
To: Arnd Bergmann <arnd@...db.de>, Arnd Bergmann <arnd@...nel.org>,
        "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>,
        Ariel Elior
	<aelior@...vell.com>, Manish Chopra <manishc@...vell.com>
CC: "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni
	<pabeni@...hat.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers
	<ndesaulniers@...gle.com>,
        Bill Wendling <morbo@...gle.com>,
        Justin Stitt
	<justinstitt@...gle.com>,
        Simon Horman <horms@...nel.org>,
        Konstantin
 Khorenko <khorenko@...tuozzo.com>,
        Sudarsana Reddy Kalluru
	<sudarsana.kalluru@...ium.com>,
        Netdev <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [EXTERNAL] [PATCH 3/9] qed: avoid truncating work queue length

Hi,

>-----Original Message-----
>From: Arnd Bergmann <arnd@...db.de>
>Sent: Wednesday, March 27, 2024 9:05 PM
>To: Subbaraya Sundeep Bhatta <sbhatta@...vell.com>; Arnd Bergmann
><arnd@...nel.org>; llvm@...ts.linux.dev; Ariel Elior <aelior@...vell.com>;
>Manish Chopra <manishc@...vell.com>
>Cc: David S . Miller <davem@...emloft.net>; Eric Dumazet
><edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni
><pabeni@...hat.com>; Nathan Chancellor <nathan@...nel.org>; Nick
>Desaulniers <ndesaulniers@...gle.com>; Bill Wendling <morbo@...gle.com>;
>Justin Stitt <justinstitt@...gle.com>; Simon Horman <horms@...nel.org>;
>Konstantin Khorenko <khorenko@...tuozzo.com>; Sudarsana Reddy Kalluru
><sudarsana.kalluru@...ium.com>; Netdev <netdev@...r.kernel.org>; linux-
>kernel@...r.kernel.org
>Subject: Re: [EXTERNAL] [PATCH 3/9] qed: avoid truncating work queue length
>
>On Wed, Mar 27, 2024, at 15:04, Subbaraya Sundeep Bhatta wrote:
>
>>>-		snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x",
>>>-			 cdev->pdev->bus->number,
>>>-			 PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
>>>+		hwfn->slowpath_wq = alloc_workqueue("slowpath-
>>>%02x:%02x.%02x",
>>>+					 0, 0, cdev->pdev->bus->number,
>>>+					 PCI_SLOT(cdev->pdev->devfn),
>>>+					 hwfn->abs_pf_id);
>>
>> Confused. This should be alloc_workqueue("slowpath-%02x:%02x.%02x",
>> cdev->pdev->bus->number, PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id,
>> 0, 0);
>> Right?
>
>I still think my version is the right one here, see the
>prototype:
>
>__printf(1, 4) struct workqueue_struct *
>alloc_workqueue(const char *fmt, unsigned int flags, int max_active, ...);
>
>so the first argument in the format, while the printf arguments
>start after the flags and max_active arguments that are still both
>set to zero.
>
My bad. Got it

Thanks,
Sundeep

>      Arnd