diff options
| author | Valdis Kl ē tnieks <valdis.kletnieks@vt.edu> | 2020-05-09 00:47:19 -0400 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-05-26 00:03:16 +0900 |
| commit | 9f64fbdb774838db1445268fa8c46041fb1c28ab (patch) | |
| tree | 4520331e28e7fe3514aae0b840235782c984825e /net | |
| parent | 6ce16f2bc879fb8943d2165f81862c6f89ec1b77 (diff) | |
bpfilter: document build requirements for bpfilter_umh
It's not intuitively obvious that bpfilter_umh is a statically linked binary.
Mention the toolchain requirement in the Kconfig help, so people
have an easier time figuring out what's needed.
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bpfilter/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig index 045144d4a42c..84015ef3ee27 100644 --- a/net/bpfilter/Kconfig +++ b/net/bpfilter/Kconfig @@ -13,4 +13,8 @@ config BPFILTER_UMH default m help This builds bpfilter kernel module with embedded user mode helper + + Note: your toolchain must support building static binaries, since + rootfs isn't mounted at the time when __init functions are called + and do_execv won't be able to find the elf interpreter. endif |