On Mon, Apr 28, 2025 at 4:11 PM Uday Shankar ushankar@purestorage.com wrote:
Building kublk currently fails (with a "could not find linux/ublk_cmd.h" error message) if kernel headers are not installed in a system-global location (i.e. somewhere in the compiler's default include search path). This failure is unnecessary, as make kselftest installs kernel headers in the build tree - kublk's build just isn't looking for them properly. There is an include path in kublk's CFLAGS which is probably intended to find the kernel headers installed in the build tree; fix it so that it can actually find them.
This introduces some macro redefinition issues between glibc-provided headers and kernel headers; fix those by eliminating one include in kublk.
I'm curious what symbol was redefined. struct iovec? Anyways,
Reviewed-by: Caleb Sander Mateos csander@purestorage.com
Signed-off-by: Uday Shankar ushankar@purestorage.com
tools/testing/selftests/ublk/Makefile | 2 +- tools/testing/selftests/ublk/kublk.h | 1 - 2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/testing/selftests/ublk/Makefile b/tools/testing/selftests/ublk/Makefile index 86474cfe8d03b2df3f8c9bc1a5902701a0f72f58..feca641635d706a856898f8e22a630f5f47361b6 100644 --- a/tools/testing/selftests/ublk/Makefile +++ b/tools/testing/selftests/ublk/Makefile @@ -2,7 +2,7 @@
CONFIG = $(top_srcdir)/include/config/auto.conf WERROR = $(if $(shell grep CONFIG_WERROR=y ${CONFIG}),-Werror,) -CFLAGS += -O3 -Wl,-no-as-needed -Wall ${WERROR} -I $(top_srcdir) +CFLAGS += -O3 -Wl,-no-as-needed -Wall ${WERROR} -I $(top_srcdir)/usr/include LDLIBS += -lpthread -lm -luring
TEST_PROGS := test_generic_01.sh diff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h index 918db5cd633fc1041e1e0805142f00e7e4f28bf7..4b943e57a890e5f14fa11dd19d67c4c8684c4417 100644 --- a/tools/testing/selftests/ublk/kublk.h +++ b/tools/testing/selftests/ublk/kublk.h @@ -19,7 +19,6 @@ #include <sys/inotify.h> #include <sys/wait.h> #include <sys/eventfd.h> -#include <sys/uio.h> #include <sys/ipc.h> #include <sys/shm.h> #include <linux/io_uring.h>
-- 2.34.1