From 601b1b459d937aa219e671bb99734a04d55bc553 Mon Sep 17 00:00:00 2001 From: Jeffy Chen Date: Wed, 12 Jan 2022 11:42:19 +0800 Subject: [PATCH 5/5] HACK: Bypass drmGetBusid and drmAuthMagic by default A few versions of Mali GBM winsys would try to call those APIs. Set env "DRM_ALLOW_GET_BUSID" and "DRM_ALLOW_AUTH_MAGIC" to enable them. Signed-off-by: Jeffy Chen --- xf86drm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xf86drm.c b/xf86drm.c index c681da4..de8a678 100644 --- a/xf86drm.c +++ b/xf86drm.c @@ -1440,6 +1440,9 @@ drm_public char *drmGetBusid(int fd) { drm_unique_t u; + if (!getenv("DRM_ALLOW_GET_BUSID")) + return strdup(""); + memclear(u); if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) @@ -1498,6 +1501,9 @@ drm_public int drmAuthMagic(int fd, drm_magic_t magic) { drm_auth_t auth; + if (!getenv("DRM_ALLOW_AUTH_MAGIC")) + return 0; + memclear(auth); auth.magic = magic; if (drmIoctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth)) -- 2.20.1