[PATCH v5 4/8] firmware: add call to LSM hook before firmware sysfs fallback

[kbuild test robot]

Hi Mimi,

I love your patch! Yet something to improve:

[auto build test ERROR on integrity/next-integrity]
[also build test ERROR on v4.18-rc3 next-20180702]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Mimi-Zohar/kexec-firmware-support-system-wide-policy-requiring-signatures/20180703-011114
base:   https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity
config: x86_64-randconfig-ws0-07031240 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

>> ERROR: "security_kernel_load_data" [drivers/base/firmware_loader/firmware_class.ko] undefined!

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