lookup_local_symbol timekeeping_forward_now.constprop.8 (timekeeping.c)

[jstancek]

I'm hitting this error, with following patch:

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 1c5b0fc..aaee73f 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -474,6 +474,8 @@ void do_gettimeofday(struct timeval *tv)
 {
        struct timespec now;

+       if (!tv)
+               return;
        getnstimeofday(&now);
        tv->tv_sec = now.tv_sec;
        tv->tv_usec = now.tv_nsec/1000;

/usr/local/libexec/kpatch/create-diff-object: kpatch_create_patches_sections: 1490: lookup_local_symbol timekeeping_forward_now.constprop.8 (timekeeping.c)

# git log -p -1 --oneline
13f02e6 Merge pull request #224 from jpoimboe/distro-specific-vmlinux

# uname -r
3.10.0-123.el7.x86_64

[jpoimboe]

Thanks @jstancek . This is very similar to #189, where gcc is renaming functions because of some compiler optimizations which affect the function's calling interface. The problem is that the trailing numbers don't match.