Masahiro Yamada 9326e0f85b bpfilter: Allow to build bpfilter_umh as a module without static library ... Originally, bpfilter_umh was linked with -static only when CONFIG_BPFILTER_UMH=y. Commit 8a2cc0505c ("bpfilter: use 'userprogs' syntax to build bpfilter_umh") silently, accidentally dropped the CONFIG_BPFILTER_UMH=y test in the Makefile. Revive it in order to link it dynamically when CONFIG_BPFILTER_UMH=m. Since commit b1183b6dca ("bpfilter: check if $(CC) can link static libc in Kconfig"), the compiler must be capable of static linking to enable CONFIG_BPFILTER_UMH, but it requires more than needed. To loosen the compiler requirement, I changed the dependency as follows: depends on CC_CAN_LINK depends on m || CC_CAN_LINK_STATIC If CONFIG_CC_CAN_LINK_STATIC in unset, CONFIG_BPFILTER_UMH is restricted to 'm' or 'n'. In theory, CONFIG_CC_CAN_LINK is not required for CONFIG_BPFILTER_UMH=y, but I did not come up with a good way to describe it. Fixes: 8a2cc0505c ("bpfilter: use 'userprogs' syntax to build bpfilter_umh") Reported-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Michal Kubecek <mkubecek@suse.cz> Link: https://lore.kernel.org/bpf/20200701092644.762234-1-masahiroy@kernel.org		2020-07-14 12:37:06 -07:00
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.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
bpfilter_kern.c	bpfilter: Initialize pos variable	2020-07-14 12:31:45 -07:00
bpfilter_umh_blob.S	bpfilter: Move bpfilter_umh back into init data	2020-07-04 09:35:50 -05:00
Kconfig	bpfilter: Allow to build bpfilter_umh as a module without static library	2020-07-14 12:37:06 -07:00
main.c	net/bpfilter: remove superfluous testing message	2020-03-31 10:07:51 -07:00
Makefile	bpfilter: Allow to build bpfilter_umh as a module without static library	2020-07-14 12:37:06 -07:00
msgfmt.h