✗ Fi.CI.BAT: failure for Hello world (rev2)

[Patchwork]

== Series Details ==

Series: Hello world (rev2)
URL   : https://patchwork.freedesktop.org/series/38149/
State : failure

== Summary ==

  CHK     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  CHK     include/generated/bounds.h
  CHK     include/generated/timeconst.h
  CHK     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  DESCEND  objtool
  CHK     scripts/mod/devicetable-offsets.h
  CHK     include/generated/compile.h
  CHK     kernel/config_data.h
  CC [M]  drivers/gpu/drm/i915/i915_drv.o
drivers/gpu/drm/i915/i915_drv.c: In function ‘i915_driver_open’:
drivers/gpu/drm/i915/i915_drv.c:1492:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
  struct drm_i915_private *i915 = to_i915(dev);
  ^~~~~~
cc1: all warnings being treated as errors
scripts/Makefile.build:316: recipe for target 'drivers/gpu/drm/i915/i915_drv.o' failed
make[4]: *** [drivers/gpu/drm/i915/i915_drv.o] Error 1
scripts/Makefile.build:575: recipe for target 'drivers/gpu/drm/i915' failed
make[3]: *** [drivers/gpu/drm/i915] Error 2
scripts/Makefile.build:575: recipe for target 'drivers/gpu/drm' failed
make[2]: *** [drivers/gpu/drm] Error 2
scripts/Makefile.build:575: recipe for target 'drivers/gpu' failed
make[1]: *** [drivers/gpu] Error 2
Makefile:1048: recipe for target 'drivers' failed
make: *** [drivers] Error 2