mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-30 22:26:55 +00:00
selftests: mptcp: lib: skip if missing symbol
commit673004821a
upstream. Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features. New functions are now available to easily detect if a certain feature is missing by looking at kallsyms. These new helpers are going to be used in the following commits. In order to ease the backport of such future patches, it would be good if this patch is backported up to the introduction of MPTCP selftests, hence the Fixes tag below: this type of check was supposed to be done from the beginning. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes:048d19d444
("mptcp: add basic kselftest for mptcp") Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
4bed22c687
commit
9ead68270b
2 changed files with 39 additions and 0 deletions
|
@ -1,3 +1,4 @@
|
|||
CONFIG_KALLSYMS=y
|
||||
CONFIG_MPTCP=y
|
||||
CONFIG_IPV6=y
|
||||
CONFIG_MPTCP_IPV6=y
|
||||
|
|
|
@ -38,3 +38,41 @@ mptcp_lib_check_mptcp() {
|
|||
exit ${KSFT_SKIP}
|
||||
fi
|
||||
}
|
||||
|
||||
mptcp_lib_check_kallsyms() {
|
||||
if ! mptcp_lib_has_file "/proc/kallsyms"; then
|
||||
echo "SKIP: CONFIG_KALLSYMS is missing"
|
||||
exit ${KSFT_SKIP}
|
||||
fi
|
||||
}
|
||||
|
||||
# Internal: use mptcp_lib_kallsyms_has() instead
|
||||
__mptcp_lib_kallsyms_has() {
|
||||
local sym="${1}"
|
||||
|
||||
mptcp_lib_check_kallsyms
|
||||
|
||||
grep -q " ${sym}" /proc/kallsyms
|
||||
}
|
||||
|
||||
# $1: part of a symbol to look at, add '$' at the end for full name
|
||||
mptcp_lib_kallsyms_has() {
|
||||
local sym="${1}"
|
||||
|
||||
if __mptcp_lib_kallsyms_has "${sym}"; then
|
||||
return 0
|
||||
fi
|
||||
|
||||
mptcp_lib_fail_if_expected_feature "${sym} symbol not found"
|
||||
}
|
||||
|
||||
# $1: part of a symbol to look at, add '$' at the end for full name
|
||||
mptcp_lib_kallsyms_doesnt_have() {
|
||||
local sym="${1}"
|
||||
|
||||
if ! __mptcp_lib_kallsyms_has "${sym}"; then
|
||||
return 0
|
||||
fi
|
||||
|
||||
mptcp_lib_fail_if_expected_feature "${sym} symbol has been found"
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue