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Date: Thu, 1 Feb 2018 17:47:53 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: Marc-André Lureau <marcandre.lureau@...hat.com>
Cc: kbuild-all@...org, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
"Michael S. Tsirkin" <mst@...hat.com>,
Gabriel Somlo <somlo@....edu>
Subject: [vhost:vhost 11/22] drivers//firmware/qemu_fw_cfg.c:380:3: error:
implicit declaration of function 'paddr_vmcoreinfo_note'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head: 9991b95cb712cdd9a40240bde6274d5415476fb5
commit: 860c7fa9d6d433011e82a4f7f896893e914ce4a9 [11/22] fw_cfg: write vmcoreinfo details
config: i386-randconfig-a0-201804 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
git checkout 860c7fa9d6d433011e82a4f7f896893e914ce4a9
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
In file included from include/linux/byteorder/little_endian.h:5:0,
from arch/x86/include/uapi/asm/byteorder.h:5,
from include/asm-generic/bitops/le.h:6,
from arch/x86/include/asm/bitops.h:518,
from include/linux/bitops.h:38,
from include/linux/kernel.h:11,
from include/linux/list.h:9,
from include/linux/module.h:9,
from drivers//firmware/qemu_fw_cfg.c:30:
drivers//firmware/qemu_fw_cfg.c: In function 'write_vmcoreinfo':
drivers//firmware/qemu_fw_cfg.c:379:23: error: 'VMCOREINFO_NOTE_SIZE' undeclared (first use in this function)
.size = cpu_to_le32(VMCOREINFO_NOTE_SIZE),
^
include/uapi/linux/byteorder/little_endian.h:33:51: note: in definition of macro '__cpu_to_le32'
#define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
^
drivers//firmware/qemu_fw_cfg.c:379:11: note: in expansion of macro 'cpu_to_le32'
.size = cpu_to_le32(VMCOREINFO_NOTE_SIZE),
^
drivers//firmware/qemu_fw_cfg.c:379:23: note: each undeclared identifier is reported only once for each function it appears in
.size = cpu_to_le32(VMCOREINFO_NOTE_SIZE),
^
include/uapi/linux/byteorder/little_endian.h:33:51: note: in definition of macro '__cpu_to_le32'
#define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
^
drivers//firmware/qemu_fw_cfg.c:379:11: note: in expansion of macro 'cpu_to_le32'
.size = cpu_to_le32(VMCOREINFO_NOTE_SIZE),
^
>> drivers//firmware/qemu_fw_cfg.c:380:3: error: implicit declaration of function 'paddr_vmcoreinfo_note' [-Werror=implicit-function-declaration]
.paddr = cpu_to_le64(paddr_vmcoreinfo_note())
^
cc1: some warnings being treated as errors
vim +/paddr_vmcoreinfo_note +380 drivers//firmware/qemu_fw_cfg.c
360
361 #ifdef CONFIG_CRASH_CORE
362 static ssize_t write_vmcoreinfo(struct device *dev, const struct fw_cfg_file *f)
363 {
364 struct vmci {
365 __le16 host_format;
366 __le16 guest_format;
367 __le32 size;
368 __le64 paddr;
369 } __packed;
370 static struct vmci *data;
371 ssize_t ret;
372
373 data = kmalloc(sizeof(struct vmci), GFP_KERNEL);
374 if (!data)
375 return -ENOMEM;
376
377 *data = (struct vmci) {
378 .guest_format = cpu_to_le16(VMCOREINFO_FORMAT_ELF),
> 379 .size = cpu_to_le32(VMCOREINFO_NOTE_SIZE),
> 380 .paddr = cpu_to_le64(paddr_vmcoreinfo_note())
381 };
382 /* spare ourself reading host format support for now since we
383 * don't know what else to format - host may ignore ours
384 */
385 ret = fw_cfg_write_blob(dev, f->select, data, 0, sizeof(struct vmci));
386
387 kfree(data);
388 return ret;
389 }
390 #endif /* CONFIG_CRASH_CORE */
391
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