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[68.147.0.187]) by smtp.gmail.com with ESMTPSA id d2sm330981pfu.203.2021.11.24.09.51.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Nov 2021 09:51:14 -0800 (PST) Date: Wed, 24 Nov 2021 10:51:11 -0700 From: Mathieu Poirier To: Yicong Yang Cc: gregkh@linuxfoundation.org, helgaas@kernel.org, alexander.shishkin@linux.intel.com, lorenzo.pieralisi@arm.com, will@kernel.org, mark.rutland@arm.com, suzuki.poulose@arm.com, mike.leach@linaro.org, leo.yan@linaro.org, jonathan.cameron@huawei.com, daniel.thompson@linaro.org, joro@8bytes.org, john.garry@huawei.com, shameerali.kolothum.thodi@huawei.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, linux-pci@vger.kernel.org, linux-perf-users@vger.kernel.org, iommu@lists.linux-foundation.org, prime.zeng@huawei.com, liuqi115@huawei.com, zhangshaokun@hisilicon.com, linuxarm@huawei.com, song.bao.hua@hisilicon.com Subject: Re: [PATCH v2 1/6] iommu: Export iommu_{get,put}_resv_regions() Message-ID: <20211124175111.GA35341@p14s> References: <20211116090625.53702-1-yangyicong@hisilicon.com> <20211116090625.53702-2-yangyicong@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211116090625.53702-2-yangyicong@hisilicon.com> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Tue, Nov 16, 2021 at 05:06:20PM +0800, Yicong Yang wrote: > Export iommu_{get,put}_resv_regions() to the modules so that the driver > can retrieve and use the reserved regions of the device. > > Signed-off-by: Yicong Yang > --- > drivers/iommu/iommu.c | 2 ++ > include/linux/iommu.h | 4 ++-- > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c > index dd7863e453a5..e96711eee965 100644 > --- a/drivers/iommu/iommu.c > +++ b/drivers/iommu/iommu.c > @@ -2792,6 +2792,7 @@ void iommu_get_resv_regions(struct device *dev, struct list_head *list) > if (ops && ops->get_resv_regions) > ops->get_resv_regions(dev, list); > } > +EXPORT_SYMBOL_GPL(iommu_get_resv_regions); > > void iommu_put_resv_regions(struct device *dev, struct list_head *list) > { > @@ -2800,6 +2801,7 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list) > if (ops && ops->put_resv_regions) > ops->put_resv_regions(dev, list); > } > +EXPORT_SYMBOL_GPL(iommu_put_resv_regions); > > /** > * generic_iommu_put_resv_regions - Reserved region driver helper > diff --git a/include/linux/iommu.h b/include/linux/iommu.h > index d2f3435e7d17..1b7b0f370e28 100644 > --- a/include/linux/iommu.h > +++ b/include/linux/iommu.h > @@ -450,8 +450,8 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io > extern void iommu_set_fault_handler(struct iommu_domain *domain, > iommu_fault_handler_t handler, void *token); > > -extern void iommu_get_resv_regions(struct device *dev, struct list_head *list); > -extern void iommu_put_resv_regions(struct device *dev, struct list_head *list); > +void iommu_get_resv_regions(struct device *dev, struct list_head *list); > +void iommu_put_resv_regions(struct device *dev, struct list_head *list); Acked-by: Mathieu Poirier > extern void generic_iommu_put_resv_regions(struct device *dev, > struct list_head *list); > extern void iommu_set_default_passthrough(bool cmd_line); > -- > 2.33.0 >