Masahiro Yamada 9371f86ecb bpfilter: match bit size of bpfilter_umh to that of the kernel ... bpfilter_umh is built for the default machine bit of the compiler, which may not match to the bit size of the kernel. This happens in the scenario below: You can use biarch GCC that defaults to 64-bit for building the 32-bit kernel. In this case, Kbuild passes -m32 to teach the compiler to produce 32-bit kernel space objects. However, it is missing when building bpfilter_umh. It is built as a 64-bit ELF, and then embedded into the 32-bit kernel. The 32-bit kernel and 64-bit umh is a bad combination. In theory, we can have 32-bit umh running on 64-bit kernel, but we do not have a good reason to support such a usecase. The best is to match the bit size between them. Pass -m32 or -m64 to the umh build command if it is found in $(KBUILD_CFLAGS). Evaluate CC_CAN_LINK against the kernel bit-size. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>		2020-05-17 18:52:01 +09:00
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.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
bpfilter_kern.c	signal/bpfilter: Fix bpfilter_kernl to use send_sig not force_sig	2019-05-27 09:36:28 -05:00
bpfilter_umh_blob.S	net: bpfilter: change section name of bpfilter UMH blob.	2019-01-16 15:46:46 -08:00
Kconfig	init/Kconfig: add CONFIG_CC_CAN_LINK	2019-07-08 02:25:59 +09:00
main.c	net/bpfilter: remove superfluous testing message	2020-03-31 10:07:51 -07:00
Makefile	bpfilter: match bit size of bpfilter_umh to that of the kernel	2020-05-17 18:52:01 +09:00
msgfmt.h