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Message-ID: <202107310747.VeWeGgQk-lkp@intel.com>
Date: Sat, 31 Jul 2021 07:35:16 +0800
From: kernel test robot <lkp@...el.com>
To: Vadym Kochan <vadym.kochan@...ision.eu>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Jamal Hadi Salim <jhs@...atatu.com>,
Cong Wang <xiyou.wangcong@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Vladimir Oltean <olteanv@...il.com>,
Serhiy Boiko <serhiy.boiko@...ision.eu>,
Volodymyr Mytnyk <volodymyr.mytnyk@...ision.eu>,
Taras Chornyi <taras.chornyi@...ision.eu>
Cc: clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
netdev@...r.kernel.org
Subject: Re: [PATCH net-next 4/4] net: marvell: prestera: Offload
FLOW_ACTION_POLICE
Hi Vadym,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Vadym-Kochan/Marvell-Prestera-add-policer-support/20210730-214316
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 3e12361b6d23f793580a50a6008633501c56ea1d
config: s390-randconfig-r032-20210730 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4f71f59bf3d9914188a11d0c41bedbb339d36ff5)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/0day-ci/linux/commit/57041b87fd209b43060824a451a3fbf0eee0ab89
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Vadym-Kochan/Marvell-Prestera-add-policer-support/20210730-214316
git checkout 57041b87fd209b43060824a451a3fbf0eee0ab89
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from drivers/net/ethernet/marvell/prestera/prestera_hw.c:4:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:36:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/net/ethernet/marvell/prestera/prestera_hw.c:4:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/net/ethernet/marvell/prestera/prestera_hw.c:4:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/net/ethernet/marvell/prestera/prestera_hw.c:1020:5: warning: no previous prototype for function '__prestera_hw_acl_rule_add' [-Wmissing-prototypes]
int __prestera_hw_acl_rule_add(struct prestera_switch *sw,
^
drivers/net/ethernet/marvell/prestera/prestera_hw.c:1020:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __prestera_hw_acl_rule_add(struct prestera_switch *sw,
^
static
>> drivers/net/ethernet/marvell/prestera/prestera_hw.c:1074:5: warning: no previous prototype for function '__prestera_hw_acl_rule_ext_add' [-Wmissing-prototypes]
int __prestera_hw_acl_rule_ext_add(struct prestera_switch *sw,
^
drivers/net/ethernet/marvell/prestera/prestera_hw.c:1074:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __prestera_hw_acl_rule_ext_add(struct prestera_switch *sw,
^
static
14 warnings generated.
vim +/__prestera_hw_acl_rule_add +1020 drivers/net/ethernet/marvell/prestera/prestera_hw.c
1019
> 1020 int __prestera_hw_acl_rule_add(struct prestera_switch *sw,
1021 struct prestera_acl_rule *rule,
1022 u32 *rule_id)
1023 {
1024 struct prestera_msg_acl_action *actions;
1025 struct prestera_msg_acl_match *matches;
1026 struct prestera_msg_acl_rule_resp resp;
1027 struct prestera_msg_acl_rule_req *req;
1028 u8 n_actions;
1029 u8 n_matches;
1030 void *buff;
1031 u32 size;
1032 int err;
1033
1034 n_actions = prestera_acl_rule_action_len(rule);
1035 n_matches = prestera_acl_rule_match_len(rule);
1036
1037 size = sizeof(*req) + sizeof(*actions) * n_actions +
1038 sizeof(*matches) * n_matches;
1039
1040 buff = kzalloc(size, GFP_KERNEL);
1041 if (!buff)
1042 return -ENOMEM;
1043
1044 req = buff;
1045 actions = buff + sizeof(*req);
1046 matches = buff + sizeof(*req) + sizeof(*actions) * n_actions;
1047
1048 /* put acl actions into the message */
1049 err = prestera_hw_acl_actions_put(actions, rule);
1050 if (err)
1051 goto free_buff;
1052
1053 /* put acl matches into the message */
1054 err = prestera_hw_acl_matches_put(matches, rule);
1055 if (err)
1056 goto free_buff;
1057
1058 req->ruleset_id = prestera_acl_rule_ruleset_id_get(rule);
1059 req->priority = prestera_acl_rule_priority_get(rule);
1060 req->n_actions = prestera_acl_rule_action_len(rule);
1061 req->n_matches = prestera_acl_rule_match_len(rule);
1062
1063 err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ACL_RULE_ADD,
1064 &req->cmd, size, &resp.ret, sizeof(resp));
1065 if (err)
1066 goto free_buff;
1067
1068 *rule_id = resp.id;
1069 free_buff:
1070 kfree(buff);
1071 return err;
1072 }
1073
> 1074 int __prestera_hw_acl_rule_ext_add(struct prestera_switch *sw,
1075 struct prestera_acl_rule *rule,
1076 u32 *rule_id)
1077 {
1078 struct prestera_msg_acl_action_ext *actions;
1079 struct prestera_msg_acl_rule_ext_req *req;
1080 struct prestera_msg_acl_match *matches;
1081 struct prestera_msg_acl_rule_resp resp;
1082 u8 n_actions;
1083 u8 n_matches;
1084 void *buff;
1085 u32 size;
1086 int err;
1087
1088 n_actions = prestera_acl_rule_action_len(rule);
1089 n_matches = prestera_acl_rule_match_len(rule);
1090
1091 size = sizeof(*req) + sizeof(*actions) * n_actions +
1092 sizeof(*matches) * n_matches;
1093
1094 buff = kzalloc(size, GFP_KERNEL);
1095 if (!buff)
1096 return -ENOMEM;
1097
1098 req = buff;
1099 actions = buff + sizeof(*req);
1100 matches = buff + sizeof(*req) + sizeof(*actions) * n_actions;
1101
1102 /* put acl actions into the message */
1103 err = prestera_hw_acl_actions_ext_put(actions, rule);
1104 if (err)
1105 goto free_buff;
1106
1107 /* put acl matches into the message */
1108 err = prestera_hw_acl_matches_put(matches, rule);
1109 if (err)
1110 goto free_buff;
1111
1112 req->ruleset_id = prestera_acl_rule_ruleset_id_get(rule);
1113 req->priority = prestera_acl_rule_priority_get(rule);
1114 req->n_actions = prestera_acl_rule_action_len(rule);
1115 req->n_matches = prestera_acl_rule_match_len(rule);
1116 req->hw_tc = prestera_acl_rule_hw_tc_get(rule);
1117
1118 err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ACL_RULE_ADD,
1119 &req->cmd, size, &resp.ret, sizeof(resp));
1120 if (err)
1121 goto free_buff;
1122
1123 *rule_id = resp.id;
1124 free_buff:
1125 kfree(buff);
1126 return err;
1127 }
1128
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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