Re: [PATCH 5.15 000/392] 5.15.197-rc1 review

From: Hardik Garg

Date: Wed Dec 03 2025 - 18:07:58 EST


Build error on arm64 Azure VM:

In file included from /__w/1/s/rpmbuild/BUILD/kernel-source/tools/include/linux/bitmap.h:6,
from ../lib/bitmap.c:6:
/__w/1/s/rpmbuild/BUILD/kernel-source/tools/include/asm-generic/bitsperlong.h:14:2: error: #error Inconsistent word size. Check asm/bitsperlong.h
14 | #error Inconsistent word size. Check asm/bitsperlong.h
| ^~~~~
CC util/smt.o
make[4]: *** [util/Build:299: util/bitmap.o] Error 1
make[4]: *** Waiting for unfinished jobs....
In file included from tests/bpf.c:5:
/usr/include/sys/epoll.h:134:12: note: in a call to function 'epoll_pwait' declared 'nonnull'
134 | extern int epoll_pwait (int __epfd, struct epoll_event *__events,
| ^~~~~~~~~~~
make[3]: *** [/__w/1/s/rpmbuild/BUILD/kernel-source/tools/build/Makefile.build:143: util] Error 2
make[2]: *** [Makefile.perf:658: perf-in.o] Error 2
make[1]: *** [Makefile.perf:238: sub-make] Error 2
make: *** [Makefile:70: all] Error 2

Build error on x86 Azure VM:

In file included from /__w/1/s/rpmbuild/BUILD/kernel-source/tools/include/linux/bitmap.h:6,
from ../lib/bitmap.c:6:
/__w/1/s/rpmbuild/BUILD/kernel-source/tools/include/asm-generic/bitsperlong.h:14:2: error: #error Inconsistent word size. Check asm/bitsperlong.h
14 | #error Inconsistent word size. Check asm/bitsperlong.h
| ^~~~~
CC util/hweight.o
CC util/smt.o
make[4]: *** [util/Build:299: util/bitmap.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/__w/1/s/rpmbuild/BUILD/kernel-source/tools/build/Makefile.build:143: util] Error 2

Tested-by: Hardik Garg <hargar@xxxxxxxxxxxxxxxxxxx>


Thanks,
Hardik