platform/x86/intel/ifs: Remove memory allocation from load path

mainline inclusion
from mainline-v6.2-rc1
commit cb5eceee
category: feature
feature: Backport Intel In Field Scan(IFS) multi-blob images support
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I6L337
CVE: N/A
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/


commit/?id=cb5eceee

Intel-SIG: commit cb5eceee ("platform/x86/intel/ifs: Remove memory allocation from load path")

-------------------------------------

platform/x86/intel/ifs: Remove memory allocation from load path

IFS requires tests to be authenticated once for each CPU socket on a
system.

scan_chunks_sanity_check() was dynamically allocating memory to store
the state of whether tests have been authenticated on each socket for
every load operation.

Move the memory allocation to init path and store the pointer in
ifs_data struct.

Also rearrange the adjacent error checking in init for a more simplified
and natural flow.

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221117195957.28225-1-jithu.joseph@intel.com


Signed-off-by: Aichun Shi <aichun.shi@intel.com>