linux-kernel - arch/x86/events/intel/uncore.c:847:4: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType

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Date:   Thu, 25 Nov 2021 09:04:23 +0800
From:   kernel test robot <yujie.liu@...el.com>
To:     Kan Liang <kan.liang@...ux.intel.com>
CC:     <kbuild-all@...ts.01.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: arch/x86/events/intel/uncore.c:847:4: warning: %u in format string
 (no. 1) requires 'unsigned int' but the argument type is 'signed int'.
 [invalidPrintfArgType_uint]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a90af8f15bdc9449ee2d24e1d73fa3f7e8633f81
commit: d6c754130435ab786711bed75d04a2388a6b4da8 perf/x86/intel/uncore: Generic support for the MSR type of uncore blocks
date:   8 months ago
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

 >> arch/x86/events/intel/uncore.c:847:4: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint]
       sprintf(pmu->name, "uncore_type_%u", type->type_id);
       ^
 >> arch/x86/events/intel/uncore.c:849:4: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint]
       sprintf(pmu->name, "uncore_type_%u_%d",
       ^
 >> arch/x86/events/intel/uncore.c:849:4: warning: %d in format string (no. 2) requires 'int' but the argument type is 'unsigned int'. [invalidPrintfArgType_sint]
       sprintf(pmu->name, "uncore_type_%u_%d",
       ^

vim +847 arch/x86/events/intel/uncore.c

314d9f63f38509 arch/x86/kernel/cpu/perf_event_intel_uncore.c Yan, Zheng 2012-09-10  836
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  837  static void uncore_get_pmu_name(struct intel_uncore_pmu *pmu)
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  838  {
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  839  	struct intel_uncore_type *type = pmu->type;
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  840
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  841  	/*
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  842  	 * No uncore block name in discovery table.
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  843  	 * Use uncore_type_&typeid_&boxid as name.
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  844  	 */
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  845  	if (!type->name) {
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  846  		if (type->num_boxes == 1)
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17 @847  			sprintf(pmu->name, "uncore_type_%u", type->type_id);
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  848  		else {
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17 @849  			sprintf(pmu->name, "uncore_type_%u_%d",
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  850  				type->type_id, type->box_ids[pmu->pmu_idx]);
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  851  		}
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  852  		return;
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  853  	}
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  854
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  855  	if (type->num_boxes == 1) {
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  856  		if (strlen(type->name) > 0)
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  857  			sprintf(pmu->name, "uncore_%s", type->name);
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  858  		else
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  859  			sprintf(pmu->name, "uncore");
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  860  	} else
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  861  		sprintf(pmu->name, "uncore_%s_%d", type->name, pmu->pmu_idx);
d6c754130435ab arch/x86/events/intel/uncore.c                Kan Liang  2021-03-17  862

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