| Message ID | 131136.1588999639@turing-police |
|---|---|
| State | Not Applicable |
| Delegated to: | David Miller |
| Headers | show |
| Series | bpfilter: document build requirements for bpfilter_umh | expand |
On Sat, May 9, 2020 at 1:47 PM Valdis Klētnieks <valdis.kletnieks@vt.edu> wrote: > > 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> > Applied to linux-kbuild. Thanks. > diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig > index fed9290e3b41..0ec6c7958c20 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 >
diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig index fed9290e3b41..0ec6c7958c20 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
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>