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SubjectRe: [PATCH v5 3/3] fpga manager: Add cyclone-ps-spi driver for Altera FPGAs
Hi Joshua,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.9-rc8]
[cannot apply to next-20161209]
[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/Joshua-Clayton/lib-add-bitrev8x4/20161208-070638
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
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
# save the attached .config to linux build tree
make.cross ARCH=arm64

All errors (new ones prefixed by >>):

In file included from drivers/fpga/cyclone-ps-spi.c:13:0:
drivers/fpga/cyclone-ps-spi.c: In function 'rev_buf':
>> include/linux/bitrev.h:12:21: error: implicit declaration of function '__arch_bitrev8x4' [-Werror=implicit-function-declaration]
#define __bitrev8x4 __arch_bitrev8x4
^
include/linux/bitrev.h:101:2: note: in expansion of macro '__bitrev8x4'
__bitrev8x4(__x); \
^~~~~~~~~~~
drivers/fpga/cyclone-ps-spi.c:84:11: note: in expansion of macro 'bitrev8x4'
*fw32 = bitrev8x4(*fw32);
^~~~~~~~~
In file included from include/linux/delay.h:10:0,
from drivers/fpga/cyclone-ps-spi.c:14:
drivers/fpga/cyclone-ps-spi.c: In function 'cyclonespi_write':
include/linux/kernel.h:739:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:742:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
drivers/fpga/cyclone-ps-spi.c:98:19: note: in expansion of macro 'min'
size_t stride = min(fw_data_end - fw_data, SZ_4K);
^~~
cc1: some warnings being treated as errors

vim +/__arch_bitrev8x4 +12 include/linux/bitrev.h

556d2f05 Yalin Wang 2014-11-03 6 #ifdef CONFIG_HAVE_ARCH_BITREVERSE
556d2f05 Yalin Wang 2014-11-03 7 #include <asm/bitrev.h>
556d2f05 Yalin Wang 2014-11-03 8
556d2f05 Yalin Wang 2014-11-03 9 #define __bitrev32 __arch_bitrev32
556d2f05 Yalin Wang 2014-11-03 10 #define __bitrev16 __arch_bitrev16
556d2f05 Yalin Wang 2014-11-03 11 #define __bitrev8 __arch_bitrev8
533d0eab Joshua Clayton 2016-12-07 @12 #define __bitrev8x4 __arch_bitrev8x4
a5cfc1ec Akinobu Mita 2006-12-08 13
556d2f05 Yalin Wang 2014-11-03 14 #else
556d2f05 Yalin Wang 2014-11-03 15 extern u8 const byte_rev_table[256];

:::::: The code at line 12 was first introduced by commit
:::::: 533d0eabff8f37edfdec7fdf6e705fdecb297daa lib: add bitrev8x4()

:::::: TO: Joshua Clayton <stillcompiling@gmail.com>
:::::: CC: 0day robot <fengguang.wu@intel.com>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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