linux-kernel - linux-next: build failure after merge of the scmi tree

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Date:   Fri, 6 Oct 2023 10:39:29 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the scmi tree

Hi all,

After merging the scmi tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

In file included from drivers/tee/optee/ffa_abi.c:8:
include/linux/arm_ffa.h: In function 'ffa_mem_desc_offset':
include/linux/arm_ffa.h:105:10: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
  105 |         (FIELD_PREP(FFA_MAJOR_VERSION_MASK, (major)) |          \
      |          ^~~~~~~~~~
include/linux/arm_ffa.h:107:33: note: in expansion of macro 'FFA_PACK_VERSION_INFO'
  107 | #define FFA_VERSION_1_0         FFA_PACK_VERSION_INFO(1, 0)
      |                                 ^~~~~~~~~~~~~~~~~~~~~
include/linux/arm_ffa.h:368:28: note: in expansion of macro 'FFA_VERSION_1_0'
  368 |         if (ffa_version <= FFA_VERSION_1_0)
      |                            ^~~~~~~~~~~~~~~

Exposed by commit

  0624de756f75 ("firmware: arm_ffa: Update memory descriptor to support v1.1 format")

This has been possible for a while, and arm_ffa.h needs to include
linus/bitfoeld.h ...

I have used the scmi tree from next-20231005 for today.

-- 
Cheers,
Stephen Rothwell

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