r301853: buildkernel fail due to cc: error: no such file or directory: '/usr/src/sys/dev/nvme/nvme_sim.c'

Recent CURRENT r301853 fails to compile a kernel due to the error shown below:


[...]
cc  -c -O3 -pipe -fno-strict-aliasing -march=native  -nostdinc  -I.
-I/usr/src/sys -I/usr/src/sys/contrib/libfdt -D_KERNEL
-DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h  -fno-omit-frame-pointer
-mno-omit-leaf-frame-pointer -MD  -MF.depend.nvme_sysctl.o -MTnvme_sysctl.o
-mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse -msoft-float
-fno-asynchronous-unwind-tables -ffreestanding -fwrapv -fstack-protector -Wall
-Wredundant-decls -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes
-Wpointer-arith -Winline -Wcast-qual  -Wundef -Wno-pointer-sign
-D__printf__=__freebsd_kprintf__  -Wmissing-include-dirs
-fdiagnostics-show-option  -Wno-unknown-pragmas
-Wno-error-tautological-compare -Wno-error-empty-body
-Wno-error-parentheses-equality -Wno-error-unused-function
-Wno-error-pointer-sign -Wno-error-shift-negative-value  -mno-aes -mno-avx
-std=iso9899:1999 -Werror  /usr/src/sys/dev/nvme/nvme_sysctl.c --- nvme_sim.o
--- cc: error: no such file or directory: '/usr/src/sys/dev/nvme/nvme_sim.c'
cc: error: no input files *** [nvme_sim.o] Error code 1


Kind regards,

O. Hartmann