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b=ETK2qZcN6+sQYJHSkoLVV0k/yH8twcRhKOYJgr93JPgv0nrXxZCzfFwSW1/G62IK+ dHXoqPt/Wx9t/L3G4sdDyxTDD3f4GLS20xqlO/uiD8S/BJbeMCdXOYPXBGSX5rWv8h uU36XgMIC3kZdDlUYy2xEFpyQkWd7Ao9AI7MS+qm7TPCbsSNBulQ2TAtVt47DFfyvb 2rHJLTEmxms3qV80raVb15Ef5YlYHRpwCIAejwL3MXphMFCzgKfNnc/M/MphZcoMgV btntopHEIl6egN2Hxfn87m1H+IhrWppCwky4m3zkIqrXkZG2T894pcTMD+L6pjBS5w +ULHryOUF5DNQ== From: Leon Romanovsky To: Alex Williamson Cc: Leon Romanovsky , Christoph Hellwig , Jason Gunthorpe , Andrew Morton , Bjorn Helgaas , =?UTF-8?q?Christian=20K=C3=B6nig?= , dri-devel@lists.freedesktop.org, iommu@lists.linux.dev, Jens Axboe , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Joerg Roedel , kvm@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, Logan Gunthorpe , Marek Szyprowski , Robin Murphy , Sumit Semwal , Vivek Kasireddy , Will Deacon Subject: [PATCH 01/10] PCI/P2PDMA: Remove redundant bus_offset from map state Date: Wed, 23 Jul 2025 16:00:02 +0300 Message-ID: X-Mailer: git-send-email 2.50.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: rxmu1eu37a1jdib4p1czm3jqr4ryn85o X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 59F2380018 X-Rspam-User: X-HE-Tag: 1753275721-851654 X-HE-Meta: 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 Mg9T8c6p wfn/69ajetTVG0Ijj2iFIeZS8u4+6IJJPg3dhds/tvfcgI/doMIraKY+gqXpySXhApow7mMng5Zj9G4SF4WHGHCx4SZsfQl6tpltgcmUU5YLDN4JgzI+VVZ0pTiWTieisRtbGtvBvEQxmvcHhyxjiTpmAIyDD09QjRk6vRCsCdZgudH3JaTZMFJiTOB+oVowlc6Dw/bSxNj+/NT+f2POBmaPd2IMFq0KMugAG6zh/RZrH7HbI4Nk9nNCfRUuKO/jVLIXtZUcMPBAWnvn64szFlGfQDw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Leon Romanovsky Remove the bus_off field from pci_p2pdma_map_state since it duplicates information already available in the pgmap structure. The bus_offset is only used in one location (pci_p2pdma_bus_addr_map) and is always identical to pgmap->bus_offset. Signed-off-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky --- drivers/pci/p2pdma.c | 1 - include/linux/pci-p2pdma.h | 3 +-- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index 8d955c25aed36..fe347ed7fd8f4 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -1009,7 +1009,6 @@ void __pci_p2pdma_update_state(struct pci_p2pdma_map_state *state, { state->pgmap = page_pgmap(page); state->map = pci_p2pdma_map_type(state->pgmap, dev); - state->bus_off = to_p2p_pgmap(state->pgmap)->bus_offset; } /** diff --git a/include/linux/pci-p2pdma.h b/include/linux/pci-p2pdma.h index 075c20b161d98..b502fc8b49bf9 100644 --- a/include/linux/pci-p2pdma.h +++ b/include/linux/pci-p2pdma.h @@ -146,7 +146,6 @@ enum pci_p2pdma_map_type { struct pci_p2pdma_map_state { struct dev_pagemap *pgmap; enum pci_p2pdma_map_type map; - u64 bus_off; }; /* helper for pci_p2pdma_state(), do not use directly */ @@ -186,7 +185,7 @@ static inline dma_addr_t pci_p2pdma_bus_addr_map(struct pci_p2pdma_map_state *state, phys_addr_t paddr) { WARN_ON_ONCE(state->map != PCI_P2PDMA_MAP_BUS_ADDR); - return paddr + state->bus_off; + return paddr + to_p2p_pgmap(state->pgmap)->bus_offsetf; } #endif /* _LINUX_PCI_P2P_H */ -- 2.50.1