From: Valdis Kl ē tnieks Date: Sat, 9 May 2020 04:47:19 +0000 (-0400) Subject: bpfilter: document build requirements for bpfilter_umh X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9f64fbdb774838db1445268fa8c46041fb1c28ab;p=linux.git 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 Signed-off-by: Masahiro Yamada --- diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig index 045144d4a42ce..84015ef3ee27e 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