linux-kernel - arch/blackfin/mach-common/arch_checks.c:65:3: error: #error You need IFLUSH in L1 inst while Anomaly 05000491 applies

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Date:	Sun, 12 Jun 2016 03:54:19 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Mike Frysinger <vapier@...too.org>,
	Sonic Zhang <sonic.zhang@...log.com>
Subject: arch/blackfin/mach-common/arch_checks.c:65:3: error: #error You need
 IFLUSH in L1 inst while Anomaly 05000491 applies

Hi,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   45b00c94be33db5d00595046663163ce55cbbfb9
commit: 74181295fbc6e65047e85529aa74457d82355ffc Blackfin: allow cache funcs to be in L1 for IFLUSH Anomaly 05000491
date:   6 years ago
config: blackfin-allnoconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 4.6.3
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 74181295fbc6e65047e85529aa74457d82355ffc
        # save the attached .config to linux build tree
        make.cross ARCH=blackfin 

All errors (new ones prefixed by >>):

>> arch/blackfin/mach-common/arch_checks.c:65:3: error: #error You need IFLUSH in L1 inst while Anomaly 05000491 applies

vim +65 arch/blackfin/mach-common/arch_checks.c

    59	#if ANOMALY_05000220 && \
    60		(defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK))
    61	# error "Anomaly 05000220 does not allow you to use Write Back cache with L2 or External Memory"
    62	#endif
    63	
    64	#if ANOMALY_05000491 && !defined(CONFIG_CACHE_FLUSH_L1)
  > 65	# error You need IFLUSH in L1 inst while Anomaly 05000491 applies
    66	#endif

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