diff options
| author | Vivek Goyal <vgoyal@redhat.com> | 2014-07-31 09:38:03 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-08-04 20:49:31 +1000 |
| commit | 5e5f1a6e467b46f6b9e3f99084d12a33c5f5df48 (patch) | |
| tree | 03838b80b9160e7d7fe3fcf7cb7c445eca50bd9a /arch/m68k | |
| parent | e8d164a75c54a60501ad9ba1c35d2a76e76751f5 (diff) | |
kexec-load-and-relocate-purgatory-at-kernel-load-time-fix
Set CRYPTO=y and CRYPTO_SHA256=y for all arch supporting kexec.
Generic kexec implementation now makes use of crypto API to calculate the
sha256 digest of loaded kernel segments (for new syscall kexec_file_load()).
That means one need to enforce that CRYPTO and CRYPTO_SHA256 are built in
for kexec to compile and for new syscall to work.
I created this dependency for x86 but forgot to do for other arches
supporting kexec. And ran into compilation failure reports from kbuild
test robot.
kernel/built-in.o: In function `sys_kexec_file_load':
(.text+0x32314): undefined reference to `crypto_shash_final'
kernel/built-in.o: In function `sys_kexec_file_load':
(.text+0x32328): undefined reference to `crypto_shash_update'
kernel/built-in.o: In function `sys_kexec_file_load':
>> (.text+0x32338): undefined reference to `crypto_alloc_shash'
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 87b7c7581b1d..3ff8c9a25335 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -91,6 +91,8 @@ config MMU_SUN3 config KEXEC bool "kexec system call" depends on M68KCLASSIC + select CRYPTO + select CRYPTO_SHA256 help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot |