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SubjectRe: [PATCH net-next v2 4/7] net: mscc: Add initial Ocelot switch support
Hi Alexandre,

I love your patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url: https://github.com/0day-ci/linux/commits/Alexandre-Belloni/Microsemi-Ocelot-Ethernet-switch-support/20180429-024136
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sh

All warnings (new ones prefixed by >>):

In file included from include/linux/swab.h:5:0,
from include/uapi/linux/byteorder/little_endian.h:13,
from include/linux/byteorder/little_endian.h:5,
from arch/sh/include/uapi/asm/byteorder.h:6,
from arch/sh/include/asm/bitops.h:12,
from include/linux/bitops.h:38,
from include/linux/kernel.h:11,
from include/linux/interrupt.h:6,
from drivers/net/ethernet/mscc/ocelot_board.c:7:
drivers/net/ethernet/mscc/ocelot_board.c: In function 'ocelot_parse_ifh':
drivers/net/ethernet/mscc/ocelot_board.c:23:27: error: '_be32' undeclared (first use in this function); did you mean '__be32'?
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:27: note: each undeclared identifier is reported only once for each function it appears in
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:18:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:19:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:20:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:21:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:119:12: note: in definition of macro '__swab32'
__fswab32(x))
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net/ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
--
In file included from include/linux/swab.h:5:0,
from include/uapi/linux/byteorder/little_endian.h:13,
from include/linux/byteorder/little_endian.h:5,
from arch/sh/include/uapi/asm/byteorder.h:6,
from arch/sh/include/asm/bitops.h:12,
from include/linux/bitops.h:38,
from include/linux/kernel.h:11,
from include/linux/interrupt.h:6,
from drivers/net//ethernet/mscc/ocelot_board.c:7:
drivers/net//ethernet/mscc/ocelot_board.c: In function 'ocelot_parse_ifh':
drivers/net//ethernet/mscc/ocelot_board.c:23:27: error: '_be32' undeclared (first use in this function); did you mean '__be32'?
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:27: note: each undeclared identifier is reported only once for each function it appears in
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:117:32: note: in definition of macro '__swab32'
(__builtin_constant_p((__u32)(x)) ? \
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:18:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:19:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:20:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:21:12: note: in definition of macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
>> include/uapi/linux/byteorder/little_endian.h:40:26: note: in expansion of macro '__swab32'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:33: error: expected ')' before 'ifh'
ifh[i] = ntohl((__force _be32)ifh[i]);
^
include/uapi/linux/swab.h:119:12: note: in definition of macro '__swab32'
__fswab32(x))
^
include/linux/byteorder/generic.h:136:21: note: in expansion of macro '__be32_to_cpu'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~
include/linux/byteorder/generic.h:140:18: note: in expansion of macro '___ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~
drivers/net//ethernet/mscc/ocelot_board.c:23:12: note: in expansion of macro 'ntohl'
ifh[i] = ntohl((__force _be32)ifh[i]);
^~~~~

vim +/__swab32 +40 include/uapi/linux/byteorder/little_endian.h

5921e6f8 David Howells 2012-10-13 14
5921e6f8 David Howells 2012-10-13 15 #define __constant_htonl(x) ((__force __be32)___constant_swab32((x)))
5921e6f8 David Howells 2012-10-13 16 #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x))
5921e6f8 David Howells 2012-10-13 17 #define __constant_htons(x) ((__force __be16)___constant_swab16((x)))
5921e6f8 David Howells 2012-10-13 18 #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x))
5921e6f8 David Howells 2012-10-13 19 #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x))
5921e6f8 David Howells 2012-10-13 20 #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x))
5921e6f8 David Howells 2012-10-13 21 #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x))
5921e6f8 David Howells 2012-10-13 22 #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x))
5921e6f8 David Howells 2012-10-13 23 #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x))
5921e6f8 David Howells 2012-10-13 24 #define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x))
5921e6f8 David Howells 2012-10-13 25 #define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x)))
5921e6f8 David Howells 2012-10-13 26 #define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x))
5921e6f8 David Howells 2012-10-13 27 #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x)))
5921e6f8 David Howells 2012-10-13 28 #define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x))
5921e6f8 David Howells 2012-10-13 29 #define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x)))
5921e6f8 David Howells 2012-10-13 30 #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x))
5921e6f8 David Howells 2012-10-13 31 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
5921e6f8 David Howells 2012-10-13 32 #define __le64_to_cpu(x) ((__force __u64)(__le64)(x))
5921e6f8 David Howells 2012-10-13 33 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
5921e6f8 David Howells 2012-10-13 34 #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
5921e6f8 David Howells 2012-10-13 35 #define __cpu_to_le16(x) ((__force __le16)(__u16)(x))
5921e6f8 David Howells 2012-10-13 36 #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
5921e6f8 David Howells 2012-10-13 37 #define __cpu_to_be64(x) ((__force __be64)__swab64((x)))
5921e6f8 David Howells 2012-10-13 38 #define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
5921e6f8 David Howells 2012-10-13 39 #define __cpu_to_be32(x) ((__force __be32)__swab32((x)))
5921e6f8 David Howells 2012-10-13 @40 #define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
5921e6f8 David Howells 2012-10-13 41 #define __cpu_to_be16(x) ((__force __be16)__swab16((x)))
5921e6f8 David Howells 2012-10-13 42 #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
5921e6f8 David Howells 2012-10-13 43

:::::: The code at line 40 was first introduced by commit
:::::: 5921e6f8809b1616932ca4afd40fe449faa8fd88 UAPI: (Scripted) Disintegrate include/linux/byteorder

:::::: TO: David Howells <dhowells@redhat.com>
:::::: CC: David Howells <dhowells@redhat.com>

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