Re: [linux-next:master] BUILD REGRESSION 145e5cddfe8b4bf607510b2dcf630d95f4db420f

[Lorenzo Stoakes <lstoakes@gmail.com>]

On Fri, May 05, 2023 at 10:47:58AM +0800, kernel test robot wrote:
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: 145e5cddfe8b4bf607510b2dcf630d95f4db420f  Add linux-next specific files for 20230504
>
> Error/Warning reports:
>
> https://lore.kernel.org/oe-kbuild-all/202304102354.Q4VOXGTE-lkp@intel.com
> https://lore.kernel.org/oe-kbuild-all/202304220119.94Pw6YsD-lkp@intel.com
> https://lore.kernel.org/oe-kbuild-all/202304230014.YbScpx20-lkp@intel.com
> https://lore.kernel.org/oe-kbuild-all/202304250419.YtCLtUhG-lkp@intel.com
> https://lore.kernel.org/oe-kbuild-all/202305042329.Gyk53keD-lkp@intel.com
> https://lore.kernel.org/oe-kbuild-all/202305050237.1cQ4fBKs-lkp@intel.com
>
> Error/Warning: (recently discovered and may have been fixed)
>
> arch/um/drivers/harddog_user.c:6:10: fatal error: stdio.h: No such file or directory
> drivers/accel/habanalabs/gaudi/gaudi.c:117:19: warning: unused variable 'gaudi_irq_name' [-Wunused-const-variable]
> drivers/base/regmap/regcache-maple.c:113:23: warning: 'lower_index' is used uninitialized [-Wuninitialized]
> drivers/base/regmap/regcache-maple.c:113:36: warning: 'lower_last' is used uninitialized [-Wuninitialized]
> drivers/bluetooth/btnxpuart.c:1332:34: warning: unused variable 'nxpuart_of_match_table' [-Wunused-const-variable]
> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6339:6: warning: no previous prototype for 'amdgpu_dm_connector_funcs_force' [-Wmissing-prototypes]
> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6395:21: warning: variable 'count' set but not used [-Wunused-but-set-variable]
> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:494:13: warning: variable 'j' set but not used [-Wunused-but-set-variable]
> drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c:48:38: warning: unused variable 'golden_settings_gc_9_4_3' [-Wunused-const-variable]
> drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:62: warning: wrong kernel-doc identifier on line:
> drivers/gpu/drm/i915/i915_pmu.h:41: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> drivers/gpu/drm/i915/i915_request.h:176: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> drivers/gpu/drm/i915/i915_vma.h:145: warning: expecting prototype for i915_vma_offset(). Prototype was for i915_vma_size() instead
> drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:298:6: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
> mm/gup.c:2813:14: error: implicit declaration of function 'folio_fast_pin_allowed'; did you mean 'folio_test_pinned'? [-Werror=implicit-function-declaration]
> mm/gup.c:2813:7: error: call to undeclared function 'folio_fast_pin_allowed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

The folio_fast_pin_allowed() declaration should be fixed in v9 of the series that introduced it [1].

[1]:https://lore.kernel.org/all/cover.1683235180.git.lstoakes@gmail.com/

> phy-mtk-hdmi-mt8195.c:(.text+0x186): undefined reference to `__floatundidf'
> riscv64-linux-ld: phy-mtk-hdmi-mt8195.c:(.text+0x198): undefined reference to `__ltdf2'
> riscv64-linux-ld: phy-mtk-hdmi-mt8195.c:(.text+0x1b8): undefined reference to `__gedf2'

[snip]