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From: Thomas Gleixner <tglx@linutronix.de>
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To: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Marc Zyngier <maz@kernel.org>,
 Nishanth Menon <nm@ti.com>, Tero Kristo <kristo@kernel.org>, Santosh
 Shilimkar <ssantosh@kernel.org>, Jon Mason <jdmason@kudzu.us>, Dave Jiang
 <dave.jiang@intel.com>, Allen Hubbe <allenbh@gmail.com>,
 ntb@lists.linux.dev, Bjorn Helgaas <bhelgaas@google.com>,
 linux-pci@vger.kernel.org, Haiyang Zhang <haiyangz@microsoft.com>, Wei Liu
 <wei.liu@kernel.org>, linux-hyperv@vger.kernel.org, Wei Huang
 <wei.huang2@amd.com>, Manivannan Sadhasivam
 <manivannan.sadhasivam@linaro.org>, "James E.J. Bottomley"
 <James.Bottomley@HansenPartnership.com>, "Martin K. Petersen"
 <martin.petersen@oracle.com>, linux-scsi@vger.kernel.org, Dan Williams
 <dan.j.williams@intel.com>
Subject: Re: [patch 02/10] genirq/msi: Use lock guards for MSI descriptor
 locking
In-Reply-To: <20250312150835.00001851@huawei.com>
References: <20250309083453.900516105@linutronix.de>
 <20250309084110.267883135@linutronix.de>
 <20250311180017.00003fcc@huawei.com> <87senjz2ar.ffs@tglx>
 <20250312150835.00001851@huawei.com>
Date: Wed, 12 Mar 2025 18:46:47 +0100
Message-ID: <8734fiywe0.ffs@tglx>
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On Wed, Mar 12 2025 at 15:08, Jonathan Cameron wrote:
> On Tue, 11 Mar 2025 22:26:52 +0100
> Thomas Gleixner <tglx@linutronix.de> wrote:
>>  
>>  #define return_ptr(p)	return no_free_ptr(p)
>>  
>> +#define retain_ptr(p)				\
>> +	__get_and_null(p, NULL)
> Single line?
>
> This sort of thing got discussed in the past though I doubt I can find
> the thread. There was some push back but maybe now is it's time!
>
> Probably worth shouting about it a bit to attract attention. Maybe
> a separate patch.

Yes of course.