* [linux-next:master 14156/15421] drivers/cpufreq/powernv-cpufreq.c:947:19: sparse: sparse: incorrect type in assignment (different base types)
@ 2021-04-29 17:39 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-04-29 17:39 UTC (permalink / raw)
To: Luc Van Oostenryck
Cc: kbuild-all, Linux Memory Management List, Andrew Morton
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 9e5cff2a1315fec1da1f497714395670366506b6
commit: b65e58ae2a09e89e5060bcd122a2cd6c66919d21 [14156/15421] include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
config: powerpc64-randconfig-s031-20210429 (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=b65e58ae2a09e89e5060bcd122a2cd6c66919d21
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout b65e58ae2a09e89e5060bcd122a2cd6c66919d21
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/cpufreq/powernv-cpufreq.c:947:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] type @@ got unsigned long long [usertype] @@
drivers/cpufreq/powernv-cpufreq.c:947:19: sparse: expected restricted __be64 [usertype] type
drivers/cpufreq/powernv-cpufreq.c:947:19: sparse: got unsigned long long [usertype]
>> drivers/cpufreq/powernv-cpufreq.c:970:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] chip @@ got unsigned long long [usertype] @@
drivers/cpufreq/powernv-cpufreq.c:970:27: sparse: expected restricted __be64 [usertype] chip
drivers/cpufreq/powernv-cpufreq.c:970:27: sparse: got unsigned long long [usertype]
>> drivers/cpufreq/powernv-cpufreq.c:971:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] throttle_status @@ got unsigned long long [usertype] @@
drivers/cpufreq/powernv-cpufreq.c:971:38: sparse: expected restricted __be64 [usertype] throttle_status
drivers/cpufreq/powernv-cpufreq.c:971:38: sparse: got unsigned long long [usertype]
drivers/cpufreq/powernv-cpufreq.c:987:48: sparse: sparse: restricted __be64 degrades to integer
drivers/cpufreq/powernv-cpufreq.c:990:25: sparse: sparse: restricted __be64 degrades to integer
drivers/cpufreq/powernv-cpufreq.c:991:25: sparse: sparse: restricted __be64 degrades to integer
drivers/cpufreq/powernv-cpufreq.c:992:50: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned char [usertype] throttle_reason @@ got restricted __be64 [usertype] throttle_status @@
drivers/cpufreq/powernv-cpufreq.c:992:50: sparse: expected unsigned char [usertype] throttle_reason
drivers/cpufreq/powernv-cpufreq.c:992:50: sparse: got restricted __be64 [usertype] throttle_status
drivers/cpufreq/powernv-cpufreq.c:993:45: sparse: sparse: restricted __be64 degrades to integer
drivers/cpufreq/powernv-cpufreq.c:949:21: sparse: sparse: restricted __be64 degrades to integer
drivers/cpufreq/powernv-cpufreq.c:949:21: sparse: sparse: restricted __be64 degrades to integer
vim +947 drivers/cpufreq/powernv-cpufreq.c
735366fc407755 Shilpasri G Bhat 2015-07-16 936
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 937 static int powernv_cpufreq_occ_msg(struct notifier_block *nb,
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 938 unsigned long msg_type, void *_msg)
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 939 {
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 940 struct opal_msg *msg = _msg;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 941 struct opal_occ_msg omsg;
735366fc407755 Shilpasri G Bhat 2015-07-16 942 int i;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 943
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 944 if (msg_type != OPAL_MSG_OCC)
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 945 return 0;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 946
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 @947 omsg.type = be64_to_cpu(msg->params[0]);
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 948
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 949 switch (omsg.type) {
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 950 case OCC_RESET:
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 951 occ_reset = true;
309d0631cc329c Shilpasri G Bhat 2015-08-27 952 pr_info("OCC (On Chip Controller - enforces hard thermal/power limits) Resetting\n");
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 953 /*
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 954 * powernv_cpufreq_throttle_check() is called in
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 955 * target() callback which can detect the throttle state
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 956 * for governors like ondemand.
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 957 * But static governors will not call target() often thus
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 958 * report throttling here.
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 959 */
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 960 if (!throttled) {
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 961 throttled = true;
c89f2682a39192 Shilpasri G Bhat 2016-02-03 962 pr_warn("CPU frequency is throttled for duration\n");
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 963 }
309d0631cc329c Shilpasri G Bhat 2015-08-27 964
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 965 break;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 966 case OCC_LOAD:
309d0631cc329c Shilpasri G Bhat 2015-08-27 967 pr_info("OCC Loading, CPU frequency is throttled until OCC is started\n");
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 968 break;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 969 case OCC_THROTTLE:
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 @970 omsg.chip = be64_to_cpu(msg->params[1]);
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 @971 omsg.throttle_status = be64_to_cpu(msg->params[2]);
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 972
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 973 if (occ_reset) {
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 974 occ_reset = false;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 975 throttled = false;
309d0631cc329c Shilpasri G Bhat 2015-08-27 976 pr_info("OCC Active, CPU frequency is no longer throttled\n");
735366fc407755 Shilpasri G Bhat 2015-07-16 977
227942809b52f2 Shilpasri G Bhat 2015-07-16 978 for (i = 0; i < nr_chips; i++) {
227942809b52f2 Shilpasri G Bhat 2015-07-16 979 chips[i].restore = true;
735366fc407755 Shilpasri G Bhat 2015-07-16 980 schedule_work(&chips[i].throttle);
227942809b52f2 Shilpasri G Bhat 2015-07-16 981 }
735366fc407755 Shilpasri G Bhat 2015-07-16 982
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 983 return 0;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 984 }
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 985
c89f2682a39192 Shilpasri G Bhat 2016-02-03 986 for (i = 0; i < nr_chips; i++)
c89f2682a39192 Shilpasri G Bhat 2016-02-03 987 if (chips[i].id == omsg.chip)
c89f2682a39192 Shilpasri G Bhat 2016-02-03 988 break;
c89f2682a39192 Shilpasri G Bhat 2016-02-03 989
c89f2682a39192 Shilpasri G Bhat 2016-02-03 990 if (omsg.throttle_status >= 0 &&
1b0289848d5dce Shilpasri G Bhat 2016-03-22 991 omsg.throttle_status <= OCC_MAX_THROTTLE_STATUS) {
c89f2682a39192 Shilpasri G Bhat 2016-02-03 992 chips[i].throttle_reason = omsg.throttle_status;
1b0289848d5dce Shilpasri G Bhat 2016-03-22 993 chips[i].reason[omsg.throttle_status]++;
1b0289848d5dce Shilpasri G Bhat 2016-03-22 994 }
735366fc407755 Shilpasri G Bhat 2015-07-16 995
227942809b52f2 Shilpasri G Bhat 2015-07-16 996 if (!omsg.throttle_status)
227942809b52f2 Shilpasri G Bhat 2015-07-16 997 chips[i].restore = true;
c89f2682a39192 Shilpasri G Bhat 2016-02-03 998
735366fc407755 Shilpasri G Bhat 2015-07-16 999 schedule_work(&chips[i].throttle);
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 1000 }
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 1001 return 0;
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 1002 }
cb166fa937a2fb Shilpasri G Bhat 2015-07-16 1003
:::::: The code at line 947 was first introduced by commit
:::::: cb166fa937a2fbc14badcafca86202354c34a213 cpufreq: powernv: Register for OCC related opal_message notification
:::::: TO: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
:::::: CC: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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