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Tue, 12 May 2020 09:01:16 +0000 (GMT) From: Marek Szyprowski To: dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 17/38] drm: omapdrm: use common helper for extracting pages array Date: Tue, 12 May 2020 11:00:37 +0200 Message-Id: <20200512090058.14910-17-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200512090058.14910-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrAKsWRmVeSWpSXmKPExsWy7djPc7p3U3fFGby4KGPRe+4kk8XGGetZ Lf5vm8hsceXrezaLlauPMlks2G9t8eXKQyaLTY+vsVpc3jWHzWLtkbvsFgc/PGG1WD//FpsD j8eaeWsYPfZ+W8Disf3bA1aP+93HmTw2L6n3uP3vMbPH5BvLGT1232xg8+jbsorR4/iN7Uwe nzfJBXBHcdmkpOZklqUW6dslcGV8/HCPveAKT8X/fw/ZGhhXc3UxcnJICJhIXNl4mrmLkYtD SGAFo8T2O7+ZIJwvjBKXH+5mA6kSEvjMKHH3qA1Mx7G7jxkh4ssZJZ5uUIBreD7xBFiCTcBQ outtF1iziEAro8SJXh6QImaBQ0wSW1qvsoAkhAXCJF62rGUFsVkEVCV2TWgAs3kF7CTunj/H BLFNXmL1hgPMIDYnUPz+/D8sIIMkBPaxSzxfuYsZoshF4uuyh2wQtrDEq+Nb2CFsGYn/O+cz QTQ0M0o8PLeWHcLpAXquaQYjRJW1xJ1zv4C6OYDu05RYv0sfIuwo0f5gHTtIWEKAT+LGW0GQ MDOQOWnbdGaIMK9ER5sQRLWaxKzj6+DWHrxwCeo0D4nHt94wQULrKKPEywkhExjlZyHsWsDI uIpRPLW0ODc9tdgoL7Vcrzgxt7g0L10vOT93EyMwHZ3+d/zLDsZdf5IOMQpwMCrx8BoY7IwT Yk0sK67MPcQowcGsJMLbkgkU4k1JrKxKLcqPLyrNSS0+xCjNwaIkzmu86GWskEB6Yklqdmpq QWoRTJaJg1OqgVEp+eneuM23Vm3t3HAlKWDPjiMlKQe6Mz9MOBrQkqhuN9Wg4M3OurDXZxY4 vv73Tlgh/O5+xV9ZsgFn2ftr1QPuf2fnqArrONDKGX14R+LO8EV8S4Wni6+ND5KVWDkv+rBm t4eqV/vqDeGTLf3jJH9UXrd88/546feYaWXmpjcSe1z1a+r21SmxFGckGmoxFxUnAgD003EC QwMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprCIsWRmVeSWpSXmKPExsVy+t/xu7p3U3fFGby6yGnRe+4kk8XGGetZ Lf5vm8hsceXrezaLlauPMlks2G9t8eXKQyaLTY+vsVpc3jWHzWLtkbvsFgc/PGG1WD//FpsD j8eaeWsYPfZ+W8Disf3bA1aP+93HmTw2L6n3uP3vMbPH5BvLGT1232xg8+jbsorR4/iN7Uwe nzfJBXBH6dkU5ZeWpCpk5BeX2CpFG1oY6RlaWugZmVjqGRqbx1oZmSrp29mkpOZklqUW6dsl 6GV8/HCPveAKT8X/fw/ZGhhXc3UxcnJICJhIHLv7mLGLkYtDSGApo8SJTbvYIBIyEienNbBC 2MISf651sUEUfWKU+Hj9J1gRm4ChRNdbiISIQCejxLTuj+wgDrPACSaJe3vnM4JUCQuESBye 3wXWwSKgKrFrAsRYXgE7ibvnzzFBrJCXWL3hADOIzQkUvz//DwuILSRQKPHo6luWCYx8CxgZ VjGKpJYW56bnFhvqFSfmFpfmpesl5+duYgTGyLZjPzfvYLy0MfgQowAHoxIPb4fRzjgh1sSy 4srcQ4wSHMxKIrwtmUAh3pTEyqrUovz4otKc1OJDjKZAR01klhJNzgfGb15JvKGpobmFpaG5 sbmxmYWSOG+HwMEYIYH0xJLU7NTUgtQimD4mDk6pBsbk26+SIpxMFWdFTJbfUXwnRbGu2C7E 8uevg/y3b/GkebJ05c11f/a33qk70jjhiMv7C2yF8+YzKfGZPnMp33rv/5s35WviH/y+Oq0n I2MihxnbPgfvXUECeixSvzY+ttBd3hc3a80tectrOzIWr+g+/Pmt2sanebN7It2a1FjvvZkg uGG6Q40SS3FGoqEWc1FxIgDa6lWypwIAAA== X-CMS-MailID: 20200512090117eucas1p1acf4ddfe65242d28eee247ab2ca21454 X-Msg-Generator: CA X-RootMTR: 20200512090117eucas1p1acf4ddfe65242d28eee247ab2ca21454 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200512090117eucas1p1acf4ddfe65242d28eee247ab2ca21454 References: <20200512085710.14688-1-m.szyprowski@samsung.com> <20200512090058.14910-1-m.szyprowski@samsung.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bartlomiej Zolnierkiewicz , David Airlie , Tomi Valkeinen , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Marek Szyprowski MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/omapdrm/omap_gem.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) -- 1.9.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c index d08ae95..c259411 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem.c +++ b/drivers/gpu/drm/omapdrm/omap_gem.c @@ -1297,10 +1297,9 @@ struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, omap_obj->dma_addr = sg_dma_address(sgt->sgl); } else { /* Create pages list from sgt */ - struct sg_page_iter iter; struct page **pages; unsigned int npages; - unsigned int i = 0; + unsigned int ret; npages = DIV_ROUND_UP(size, PAGE_SIZE); pages = kcalloc(npages, sizeof(*pages), GFP_KERNEL); @@ -1311,14 +1310,9 @@ struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, } omap_obj->pages = pages; - - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - pages[i++] = sg_page_iter_page(&iter); - if (i > npages) - break; - } - - if (WARN_ON(i != npages)) { + ret = drm_prime_sg_to_page_addr_arrays(sgt, pages, NULL, + npages); + if (WARN_ON(ret)) { omap_gem_free_object(obj); obj = ERR_PTR(-ENOMEM); goto done;