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Message-ID: <20190716124249.GP5418@ubuntu-xps13>
Date: Tue, 16 Jul 2019 07:42:49 -0500
From: Seth Forshee <seth.forshee@...onical.com>
To: Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>, kbuild-all@...org,
Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
kbuild test robot <lkp@...el.com>
Subject: Re: [kbuild:kbuild 5/19] drivers/atm/eni.o: warning: objtool:
eni_init_one()+0xe42: indirect call found in RETPOLINE build
On Tue, Jul 16, 2019 at 03:57:24PM +0900, Masahiro Yamada wrote:
> (+ Josh Poimboeuf)
>
> On Tue, Jul 16, 2019 at 8:44 AM kbuild test robot <lkp@...el.com> wrote:
> >
> > tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kbuild
> > head: 0ff0c3753e06c0420c80dac1b0187a442b372acb
> > commit: 2eaf4e87ba258cc3f27e486cdf32d5ba76303c6f [5/19] kbuild: add -fcf-protection=none to retpoline flags
> > config: x86_64-randconfig-s2-07160214 (attached as .config)
> > compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
> > reproduce:
> > git checkout 2eaf4e87ba258cc3f27e486cdf32d5ba76303c6f
> > # save the attached .config to linux build tree
> > make ARCH=x86_64
>
> 0-day bot reports objtool warnings with the following applied:
> https://patchwork.kernel.org/patch/11037379/
>
> I have no idea about objtool.
>
> Is it better to drop this patch for now?
I'm surprised that the change would have any impact on a build with
gcc-4.9, since -fcf-protection seems to have been introduced in gcc-8. I
guess there's no full build log that would let us see the actual flags
passed to the compiler.
I'll try to reproduce this result. If you think the patch should be
dropped in the meantime, that's fine.
Thanks,
Seth
>
> Thanks.
>
>
>
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot <lkp@...el.com>
> >
> > All warnings (new ones prefixed by >>):
> >
> > drivers/atm/eni.o: warning: objtool: eni_do_release()+0x1a: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: do_tx()+0x1be: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_send()+0x15b: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_send()+0x1b4: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_send()+0x24d: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_int()+0xd1: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: poll_rx.isra.16()+0x99: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: poll_rx.isra.16()+0xf7: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: poll_rx.isra.16()+0x20c: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: poll_rx.isra.16()+0x266: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_ioctl()+0x54: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_tasklet()+0x3f7: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_tasklet()+0x420: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_tasklet()+0x62f: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: eni_tasklet()+0x673: indirect call found in RETPOLINE build
> > >> drivers/atm/eni.o: warning: objtool: eni_init_one()+0xe42: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: do_rx_dma.constprop.28()+0xaf: indirect call found in RETPOLINE build
> > drivers/atm/eni.o: warning: objtool: do_rx_dma.constprop.28()+0x49c: indirect call found in RETPOLINE build
> > --
> > net//batman-adv/sysfs.o: warning: objtool: batadv_show_gw_sel_class()+0x6c: indirect call found in RETPOLINE build
> > >> net//batman-adv/sysfs.o: warning: objtool: __batadv_store_uint_attr.isra.9.constprop.10()+0xb7: indirect call found in RETPOLINE build
> > net//batman-adv/sysfs.o: warning: objtool: batadv_store_gw_sel_class()+0x8b: indirect call found in RETPOLINE build
> > --
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpower()+0xd7: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpower()+0x257: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpower()+0x2f4: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwretry()+0xfb: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwretry()+0x219: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwretry()+0x2b1: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwfrag()+0xce: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwfrag()+0x1f6: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwfrag()+0x2c8: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrts()+0xc8: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrts()+0x1f0: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrts()+0x2c2: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x177: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x288: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x3ce: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x4a5: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x53d: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x5d5: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x748: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x7b5: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwpmksa()+0x824: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrate()+0x1e4: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrate()+0x2eb: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwrate()+0x413: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wireless_stats()+0x12d: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wireless_stats()+0x2bb: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wireless_stats()+0x36f: indirect call found in RETPOLINE build
> > >> net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x254: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x4a4: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x5cb: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x67e: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x82f: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x9f8: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0xac3: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0xc2c: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0xe93: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0xfea: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x106e: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_set_encryption()+0x119a: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwencode()+0x237: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwencode()+0x398: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwencode()+0x43c: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwtxpower()+0xcd: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwtxpower()+0x1f2: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwtxpower()+0x309: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwtxpower()+0x113: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwtxpower()+0x268: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwtxpower()+0x34a: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwrate()+0x145: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwrate()+0x262: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwrate()+0x341: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwfreq()+0xd2: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwfreq()+0x242: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_giwfreq()+0x343: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwap()+0x134: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwap()+0x258: indirect call found in RETPOLINE build
> > net//wireless/wext-compat.o: warning: objtool: cfg80211_wext_siwap()+0x2f1: indirect call found in RETPOLINE build
> > --
> > ^
> > include/linux/mm.h:2098:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pagecache_init(void);
> > ^
> > include/linux/mm.h:2101:3: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > unsigned long zone_start_pfn, unsigned long *zholes_size);
> > ^
> > include/linux/mm.h:2240:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init mmap_init(void);
> > ^
> > In file included from include/linux/scatterlist.h:8:0,
> > from include/linux/dma-mapping.h:11,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/linux/etherdevice.h:20,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/mm.h:2892:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init setup_nr_node_ids(void);
> > ^
> > In file included from arch/x86/include/asm/swiotlb.h:5:0,
> > from arch/x86/include/asm/dma-mapping.h:13,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/linux/etherdevice.h:20,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/swiotlb.h:37:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init swiotlb_update_mem_attributes(void);
> > ^
> > include/linux/swiotlb.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init swiotlb_exit(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:13:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/linux/etherdevice.h:20,
> > from drivers/net/usb/ax88179_178a.c:9:
> > arch/x86/include/asm/swiotlb.h:9:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_override(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:10:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_4gb(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:11:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_init(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:12:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_late_init(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:14:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/linux/etherdevice.h:20,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/dma-contiguous.h:84:12: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > bool fixed);
> > ^
> > In file included from include/linux/skbuff.h:30:0,
> > from include/linux/if_ether.h:19,
> > from include/linux/etherdevice.h:20,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/dma-mapping.h:627:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot);
> > ^
> > In file included from include/linux/seq_file.h:12:0,
> > from include/linux/seq_file_net.h:5,
> > from include/net/net_namespace.h:178,
> > from include/linux/netdevice.h:38,
> > from include/linux/etherdevice.h:21,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/cred.h:168:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init cred_init(void);
> > ^
> > In file included from include/net/net_namespace.h:192:0,
> > from include/linux/netdevice.h:38,
> > from include/linux/etherdevice.h:21,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/nsproxy.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init nsproxy_cache_init(void);
> > ^
> > In file included from include/linux/interrupt.h:19:0,
> > from include/linux/kernel_stat.h:9,
> > from include/linux/cgroup.h:26,
> > from include/net/netprio_cgroup.h:11,
> > from include/linux/netdevice.h:42,
> > from include/linux/etherdevice.h:21,
> > from drivers/net/usb/ax88179_178a.c:9:
> > arch/x86/include/asm/irq.h:43:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init init_IRQ(void);
> > ^
> > In file included from include/linux/etherdevice.h:21:0,
> > from drivers/net/usb/ax88179_178a.c:9:
> > include/linux/netdevice.h:300:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init netdev_boot_setup(char *str);
> > ^
> > include/linux/netdevice.h:4396:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dev_proc_init(void);
> > ^
> > >> drivers/net/usb/ax88179_178a.c:1780:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > module_usb_driver(ax88179_178a_driver);
> > ^
> > --
> > ^
> > include/linux/mm.h:2240:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init mmap_init(void);
> > ^
> > In file included from include/linux/scatterlist.h:8:0,
> > from include/linux/dma-mapping.h:11,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/mm.h:2892:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init setup_nr_node_ids(void);
> > ^
> > In file included from arch/x86/include/asm/swiotlb.h:5:0,
> > from arch/x86/include/asm/dma-mapping.h:13,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/swiotlb.h:37:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init swiotlb_update_mem_attributes(void);
> > ^
> > include/linux/swiotlb.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init swiotlb_exit(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:13:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/cdc_ether.c:12:
> > arch/x86/include/asm/swiotlb.h:9:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_override(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:10:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_4gb(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:11:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_init(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:12:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_late_init(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:14:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/dma-contiguous.h:84:12: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > bool fixed);
> > ^
> > In file included from include/linux/skbuff.h:30:0,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/dma-mapping.h:627:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot);
> > ^
> > In file included from include/linux/seq_file.h:12:0,
> > from include/linux/seq_file_net.h:5,
> > from include/net/net_namespace.h:178,
> > from include/linux/netdevice.h:38,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/cred.h:168:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init cred_init(void);
> > ^
> > In file included from include/net/net_namespace.h:192:0,
> > from include/linux/netdevice.h:38,
> > from drivers/net/usb/cdc_ether.c:12:
> > include/linux/nsproxy.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init nsproxy_cache_init(void);
> > ^
> > In file included from include/linux/interrupt.h:19:0,
> > from include/linux/kernel_stat.h:9,
> > from include/linux/cgroup.h:26,
> > from include/net/netprio_cgroup.h:11,
> > from include/linux/netdevice.h:42,
> > from drivers/net/usb/cdc_ether.c:12:
> > arch/x86/include/asm/irq.h:43:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init init_IRQ(void);
> > ^
> > In file included from drivers/net/usb/cdc_ether.c:12:0:
> > include/linux/netdevice.h:300:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init netdev_boot_setup(char *str);
> > ^
> > include/linux/netdevice.h:4396:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dev_proc_init(void);
> > ^
> > >> drivers/net/usb/cdc_ether.c:967:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > module_usb_driver(cdc_driver);
> > ^
> > --
> > ^
> > include/linux/mm.h:2240:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init mmap_init(void);
> > ^
> > In file included from include/linux/scatterlist.h:8:0,
> > from include/linux/dma-mapping.h:11,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/mm.h:2892:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init setup_nr_node_ids(void);
> > ^
> > In file included from arch/x86/include/asm/swiotlb.h:5:0,
> > from arch/x86/include/asm/dma-mapping.h:13,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/swiotlb.h:37:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init swiotlb_update_mem_attributes(void);
> > ^
> > include/linux/swiotlb.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > void __init swiotlb_exit(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:13:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/smsc75xx.c:10:
> > arch/x86/include/asm/swiotlb.h:9:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_override(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:10:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern int __init pci_swiotlb_detect_4gb(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:11:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_init(void);
> > ^
> > arch/x86/include/asm/swiotlb.h:12:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init pci_swiotlb_late_init(void);
> > ^
> > In file included from arch/x86/include/asm/dma-mapping.h:14:0,
> > from include/linux/dma-mapping.h:266,
> > from include/linux/skbuff.h:30,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/dma-contiguous.h:84:12: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > bool fixed);
> > ^
> > In file included from include/linux/skbuff.h:30:0,
> > from include/linux/if_ether.h:19,
> > from include/uapi/linux/ethtool.h:19,
> > from include/linux/ethtool.h:18,
> > from include/linux/netdevice.h:37,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/dma-mapping.h:627:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot);
> > ^
> > In file included from include/linux/seq_file.h:12:0,
> > from include/linux/seq_file_net.h:5,
> > from include/net/net_namespace.h:178,
> > from include/linux/netdevice.h:38,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/cred.h:168:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init cred_init(void);
> > ^
> > In file included from include/net/net_namespace.h:192:0,
> > from include/linux/netdevice.h:38,
> > from drivers/net/usb/smsc75xx.c:10:
> > include/linux/nsproxy.h:74:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init nsproxy_cache_init(void);
> > ^
> > In file included from include/linux/interrupt.h:19:0,
> > from include/linux/kernel_stat.h:9,
> > from include/linux/cgroup.h:26,
> > from include/net/netprio_cgroup.h:11,
> > from include/linux/netdevice.h:42,
> > from drivers/net/usb/smsc75xx.c:10:
> > arch/x86/include/asm/irq.h:43:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > extern void __init init_IRQ(void);
> > ^
> > In file included from drivers/net/usb/smsc75xx.c:10:0:
> > include/linux/netdevice.h:300:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init netdev_boot_setup(char *str);
> > ^
> > include/linux/netdevice.h:4396:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > int __init dev_proc_init(void);
> > ^
> > >> drivers/net/usb/smsc75xx.c:2338:1: warning: '__indirect_branch__' attribute directive ignored [-Wattributes]
> > module_usb_driver(smsc75xx_driver);
> > ^
> > ..
> >
> > ---
> > 0-DAY kernel test infrastructure Open Source Technology Center
> > https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
>
>
> --
> Best Regards
>
> Masahiro Yamada
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