On 6/16/22 12:57, Sami Tolvanen wrote:
Module object files can contain an undefined reference to __this_module, which isn't resolved until we link the final .ko. The kernel doesn't export this symbol, so ignore it in gen_autoksyms.sh. This avoids an unnecessary vmlinux rebuild with UNUSED_KSYMS_WHITELIST when we have a symbol list that already contains all the module dependencies. Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> --- scripts/gen_autoksyms.sh | 3 +++ 1 file changed, 3 insertions(+) diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh index faacf7062122..653fadbad302 100755 --- a/scripts/gen_autoksyms.sh +++ b/scripts/gen_autoksyms.sh @@ -56,4 +56,7 @@ EOT # point addresses. sed -e 's/^\.//' | sort -u | +# Ignore __this_module. It's not an exported symbol, and will be resolved +# when the final .ko's are linked. +grep -v '^__this_module$' | sed -e 's/\(.*\)/#define __KSYM_\1 1/' >> "$output_file"
Tested-by: Steve Muckle <smuckle@xxxxxxxxxx>
