A quick grep through the source reveals,
turtle:/usr/src/linux# agrep "__this_module" `cat /tmp/hmm`
./fs/binfmt_elf.c: NULL, &__this_module.usecount, load_elf_binary,
load_elf_library, elf_core_dump
./fs/binfmt_script.c: NULL, &__this_module.usecount, load_script, NULL,
NULL
./drivers/scsi/sd.c: sd_template.usage_count =
&__this_module.usecount;
./drivers/scsi/sr.c: sr_template.usage_count =
&__this_module.usecount;
./drivers/scsi/st.c: st_template.usage_count = &__this_module.usecount;
./drivers/scsi/sg.c: sg_template.usage_count =
&__this_module.usecount;
./drivers/scsi/ide-scsi.c: idescsi_template.usage_count =
&__this_module.usecount;
turtle:/usr/src/linux# agrep "skb_put_errstr" `cat /tmp/hmm`
./include/linux/skbuff.h: extern char *skb_put_errstr;
./include/linux/skbuff.h: panic(skb_put_errstr,&&here,len);
./net/netsyms.c: extern char *skb_put_errstr;
./net/netsyms.c: EXPORT_SYMBOL(skb_put_errstr);
turtle:/usr/src/linux# agrep "__kfree_skb" `cat /tmp/hmm`
./include/linux/skbuff.h: extern void __kfree_skb(struct
sk_buff *skb);
./include/linux/skbuff.h: __kfree_skb(skb);
./net/netsyms.c: EXPORT_SYMBOL(__kfree_skb);
turtle:/usr/src/linux# agrep "__up_wakeup" `cat /tmp/hmm`
./vmlinux:
timerAuthenticAMDEISA_busMCA_buswp_works_ok__verify_writedump_threaddump_fpuioremapiounmap__down_failed__up_wakeupBad
pmd in pte_alloc: %08lx
turtle:/usr/src/linux# depmod -a -e 2.1.20
*** Unresolved symbols in module /lib/modules/2.1.20/fs/binfmt_aout.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/fs/binfmt_java.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/fs/fat.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/fs/isofs.o
__this_module
*** Unresolved symbols in module /lib/modules/2..1.20/fs/minix.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/fs/msdos.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/fs/vfat.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/misc/sound.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/net/bsd_comp.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/net/dummy.o
__this_module
__kfree_skb
*** Unresolved symbols in module /lib/modules/2.1.20/net/ppp.o
__this_module
skb_put_errstr
__kfree_skb
*** Unresolved symbols in module /lib/modules/2.1.20/net/slhc.o
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/block/floppy.o
__up_wakeup
__this_module
*** Unresolved symbols in module /lib/modules/2.1.20/block/loop.o
__up_wakeup
__this_module
.sig under construction