On Tue, Dec 12, 2017 at 12:38 AM, kernelci.org bot bot@kernelci.org wrote:

Build Failures Detected:

Errors and Warnings Detected:

arm64: gcc version 5.3.1 20160412 (Linaro GCC 5.3-2016.05) defconfig 1 error 1 warning arm: gcc version 5.3.1 20160412 (Linaro GCC 5.3-2016.05) exynos_defconfig 1 error 1 warning multi_v7_defconfig 1 error 1 warning Errors summary: 2 drivers/gpu/drm/exynos/exynos_drm_gem.c:254:3: error: implicit declaration of function 'DRM_WARN' [-Werror=implicit-function-declaration]

Backporting commit 120a264f9c27 ("drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU") depends on commit

30b0da8d556e ("drm: extra printk() wrapper macros")

which was merged into linux-4.9.

1 drivers/firmware/efi/esrt.c:445:2: error: implicit declaration of function 'memunmap' [-Werror=implicit-function-declaration]

Backporting commit 89c5a2d34bda ("efi/esrt: Use memunmap() instead of kfree() to free the remapping") depends on commit

f58a37b2e01f ("efi/esrt: Use memremap not ioremap to access ESRT table in memory")

which was also merged into linux-4.9. To backport those to into kernels earlier than v4.3, you'd also need commit 92281dee825f ("arch: introduce memremap()"), which is probably too invasive to backport.

Arnd