Copied in from somewhere else, the makefile was including the kerne's usr/include dir, which caused the asm/ioctl.h file to be used. Unfortunately, that file has different values for _IOC_SIZEBITS and _IOC_WRITE than include/uapi/asm-generic/ioctl.h which then causes the _IOCW macros to give the wrong ioctl numbers, specifically for DMA_BUF_IOCTL_SYNC. This patch simply removes the extra include from the Makefile Cc: Shuah Khan <shuah@xxxxxxxxxx> Cc: Brian Starkey <brian.starkey@xxxxxxx> Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx> Cc: Laura Abbott <labbott@xxxxxxxxxx> Cc: Hridya Valsaraju <hridya@xxxxxxxxxx> Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx> Cc: Sandeep Patil <sspatil@xxxxxxxxxx> Cc: Daniel Mentz <danielmentz@xxxxxxxxxx> Cc: linux-media@xxxxxxxxxxxxxxx Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: linux-kselftest@xxxxxxxxxxxxxxx Fixes: a8779927fd86c ("kselftests: Add dma-heap test") Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx> --- tools/testing/selftests/dmabuf-heaps/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/dmabuf-heaps/Makefile b/tools/testing/selftests/dmabuf-heaps/Makefile index 607c2acd2082..604b43ece15f 100644 --- a/tools/testing/selftests/dmabuf-heaps/Makefile +++ b/tools/testing/selftests/dmabuf-heaps/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS += -static -O3 -Wl,-no-as-needed -Wall -I../../../../usr/include +CFLAGS += -static -O3 -Wl,-no-as-needed -Wall TEST_GEN_PROGS = dmabuf-heap -- 2.25.1