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Sun, 14 Jun 2020 16:33:42 -0700 (PDT) Date: Sun, 14 Jun 2020 16:32:35 -0700 In-Reply-To: <37af499e-2b8b-7e78-ed4b-0aaf711fcb38@csgroup.eu> Message-Id: <20200614233235.121432-1-gthelen@google.com> Mime-Version: 1.0 References: <37af499e-2b8b-7e78-ed4b-0aaf711fcb38@csgroup.eu> X-Mailer: git-send-email 2.27.0.290.gba653c62da-goog Subject: [PATCH v2] powerpc/powernv/pci: use ifdef to avoid dead code From: Greg Thelen To: Christophe Leroy , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , "Oliver O'Halloran" Content-Type: text/plain; charset="UTF-8" X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Greg Thelen , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Commit dc3d8f85bb57 ("powerpc/powernv/pci: Re-work bus PE configuration") removed a couple pnv_ioda_setup_bus_dma() calls. The only remaining calls are behind CONFIG_IOMMU_API. Thus builds without CONFIG_IOMMU_API see: arch/powerpc/platforms/powernv/pci-ioda.c:1888:13: error: 'pnv_ioda_setup_bus_dma' defined but not used Move pnv_ioda_setup_bus_dma() under CONFIG_IOMMU_API to avoid dead code. Fixes: dc3d8f85bb57 ("powerpc/powernv/pci: Re-work bus PE configuration") Signed-off-by: Greg Thelen --- arch/powerpc/platforms/powernv/pci-ioda.c | 26 +++++++++++------------ 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 73a63efcf855..743d840712da 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1885,19 +1885,6 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct pci_dev *pdev, return false; } -static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus) -{ - struct pci_dev *dev; - - list_for_each_entry(dev, &bus->devices, bus_list) { - set_iommu_table_base(&dev->dev, pe->table_group.tables[0]); - dev->dev.archdata.dma_offset = pe->tce_bypass_base; - - if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate) - pnv_ioda_setup_bus_dma(pe, dev->subordinate); - } -} - static inline __be64 __iomem *pnv_ioda_get_inval_reg(struct pnv_phb *phb, bool real_mode) { @@ -2501,6 +2488,19 @@ static long pnv_pci_ioda2_unset_window(struct iommu_table_group *table_group, #endif #ifdef CONFIG_IOMMU_API +static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + set_iommu_table_base(&dev->dev, pe->table_group.tables[0]); + dev->dev.archdata.dma_offset = pe->tce_bypass_base; + + if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate) + pnv_ioda_setup_bus_dma(pe, dev->subordinate); + } +} + unsigned long pnv_pci_ioda2_get_table_size(__u32 page_shift, __u64 window_size, __u32 levels) { -- 2.27.0.290.gba653c62da-goog