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3f46f04115
* gnu/packages/patches/libdrm-symbol-check.patch: Delete file. * gnu/packages/patches/libdrm-realpath-virtio.patch: New file. * gnu/local.mk (dist_patch_DATA): Adjust accordingly. * gnu/packages/xdisorg.scm (libdrm): Update to 2.4.101. [source](uri): Adjust for new .tar.xz tarball. [source](patches): Adjust patch list as above.
42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
Only check for for relative path on virtio devices. Otherwise it could
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break driver loading in some circumstances, notably the IceCat sandbox.
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https://gitlab.freedesktop.org/mesa/drm/-/issues/39
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Taken from upstream:
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https://gitlab.freedesktop.org/mesa/drm/-/commit/57df07572ce45a1b60bae6fb89770388d3abd6dd
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diff --git a/xf86drm.c b/xf86drm.c
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--- a/xf86drm.c
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+++ b/xf86drm.c
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@@ -3103,15 +3103,18 @@ static int drmParseSubsystemType(int maj, int min)
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int subsystem_type;
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snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
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- if (!realpath(path, real_path))
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- return -errno;
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- snprintf(path, sizeof(path), "%s", real_path);
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subsystem_type = get_subsystem_type(path);
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+ /* Try to get the parent (underlying) device type */
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if (subsystem_type == DRM_BUS_VIRTIO) {
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+ /* Assume virtio-pci on error */
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+ if (!realpath(path, real_path))
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+ return DRM_BUS_VIRTIO;
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strncat(path, "/..", PATH_MAX);
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subsystem_type = get_subsystem_type(path);
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- }
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+ if (subsystem_type < 0)
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+ return DRM_BUS_VIRTIO;
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+ }
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return subsystem_type;
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#elif defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD__)
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return DRM_BUS_PCI;
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@@ -3920,6 +3923,7 @@ process_device(drmDevicePtr *device, const char *d_name,
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switch (subsystem_type) {
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case DRM_BUS_PCI:
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+ case DRM_BUS_VIRTIO:
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return drmProcessPciDevice(device, node, node_type, maj, min,
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fetch_deviceinfo, flags);
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case DRM_BUS_USB:
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