On 11/16/2017 03:59 PM, yamada.masahiro@xxxxxxxxxxxxx wrote: > > >> -----Original Message----- >> From: kbuild test robot [mailto:fengguang.wu@xxxxxxxxx] >> Sent: Thursday, November 16, 2017 2:29 PM >> To: Cao jin <caoj.fnst@xxxxxxxxxxxxxx> >> Cc: kbuild-all@xxxxxx; linux-kbuild@xxxxxxxxxxxxxxx; Yamada, Masahiro/ >> 山田 真弘 <yamada.masahiro@xxxxxxxxxxxxx> >> Subject: [kbuild:kbuild 28/31] include/linux/dynamic_debug.h:76:14: >> error: 'KBUILD_MODNAME' undeclared >> >> tree: >> https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild >> .git kbuild >> head: ea15c8cd3601640e202828e3b563653a8b3c76cd >> commit: 1ac0408bbb3f47ef2411976fbd2bf758d747bbee [28/31] kbuild: fix >> modname for composite modules >> config: x86_64-allmodconfig (attached as .config) >> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 >> reproduce: >> git checkout 1ac0408bbb3f47ef2411976fbd2bf758d747bbee >> # save the attached .config to linux build tree >> make ARCH=x86_64 >> >> All error/warnings (new ones prefixed by >>): >> >> In file included from include/linux/printk.h:329:0, >> from include/linux/kernel.h:13, >> from include/linux/list.h:8, >> from include/linux/timer.h:4, >> from include/linux/netdevice.h:28, >> from >> drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:18: >> drivers/net/ethernet/cavium/liquidio/octeon_main.h: In function >> 'octeon_unmap_pci_barx': >>>> include/linux/dynamic_debug.h:76:14: error: 'KBUILD_MODNAME' >> undeclared (first use in this function) >> .modname = KBUILD_MODNAME, \ >> ^ >> include/linux/dynamic_debug.h:98:2: note: in expansion of macro >> 'DEFINE_DYNAMIC_DEBUG_METADATA_KEY' >> DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, .key.dd_key_false, \ >> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/dynamic_debug.h:132:2: note: in expansion of macro > > [snip lots of errors] >> >> --- >> 0-DAY kernel test infrastructure Open Source Technology >> Center >> https://lists.01.org/pipermail/kbuild-all Intel >> Corporation > > > OK. > Looks like this potential issue has been hidden. > > I plan to insert the following patch before Cao's one: > https://patchwork.kernel.org/patch/10060825/ > > We should better to take time for testing by 0day bot, though. > It took me a while to figure out why the build is ok before my patch. before my patch, the liquidio-m belongs to $(real-objs-m), so there is: modname = $(basetarget) after my patch, liquidio-m belongs to $(multi-objs-m), so there is: modname = $(modname-multi) And, these files both belong to liquidio-m & liquidio_vf-m, so modname-multi has 2 words, and so modname is null, and build fail. -- Sincerely, Cao jin -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
