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Y. Srinivasan" , Laxman Dewangan , Len Brown , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-snps-arc@lists.infradead.org, linux-tegra@vger.kernel.org, Russell King , Lorenzo Pieralisi , Lyude Paul , Marek Szyprowski , nouveau@lists.freedesktop.org, Palmer Dabbelt , Paul Walmsley , "Rafael J. Wysocki" , Rob Herring , Robin Murphy , Sudeep Holla , Suravee Suthikulpanit , Sven Peter , Thomas Bogendoerfer , Vineet Gupta , Vinod Koul , Wei Liu , Will Deacon , Lu Baolu , Christoph Hellwig , Jerry Snitselaar , Hector Martin , Moritz Fischer , patches@lists.linux.dev, "Rafael J. Wysocki" , Rob Herring , Thierry Reding X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231128_220609_784322_C010C5BF X-CRM114-Status: GOOD ( 15.22 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed"; DelSp="yes" Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Tue, Nov 28, 2023 at 08:48:00PM -0400, Jason Gunthorpe wrote: > Allocation of dev->iommu must be done under the > iommu_probe_device_lock. Mark this with lockdep to discourage future > mistakes. > Reviewed-by: Jerry Snitselaar > Tested-by: Hector Martin > Signed-off-by: Jason Gunthorpe > --- > drivers/iommu/iommu.c | 2 ++ > 1 file changed, 2 insertions(+) > diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c > index 0d25468d53a68a..4323b6276e977f 100644 > --- a/drivers/iommu/iommu.c > +++ b/drivers/iommu/iommu.c > @@ -334,6 +334,8 @@ static struct dev_iommu *dev_iommu_get(struct device > *dev) > { > struct dev_iommu *param = dev->iommu; > + lockdep_assert_held(&iommu_probe_device_lock); > + > if (param) > return param; > -- > 2.42.0 Reviewed-by: Moritz Fischer Cheers, Moritz _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc