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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2026 18:50:51.2672 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 22b4ccf9-f763-46cf-08fb-08de5dd4fe4c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000026C4.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7238 Content-Type: text/plain; charset="utf-8" cpumask and cpulist from cpu-domain header have hardcoded max_cpus value of 1024. Current systems have more cpus than this value. Replace it with MAX_NR_CPUS. Also define a macro to represent domain name length. Fixes: d40c68a49f69 ("perf header: Support CPU DOMAIN relation info") Reported-by: Shrikanth Hegde Signed-off-by: Swapnil Sapkal --- tools/perf/util/header.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index eefd1cd73b6a..31c3bab1b10a 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -76,6 +76,7 @@ static const u64 __perf_magic2 =3D 0x32454c4946524550U= LL; static const u64 __perf_magic2_sw =3D 0x50455246494c4532ULL; =20 #define PERF_MAGIC __perf_magic2 +#define DNAME_LEN 16 =20 const char perf_version_string[] =3D PERF_VERSION; =20 @@ -1616,10 +1617,10 @@ static int write_pmu_caps(struct feat_fd *ff, =20 struct cpu_domain_map **build_cpu_domain_map(u32 *schedstat_version, u32 *= max_sched_domains, u32 nr) { + char dname[DNAME_LEN], cpumask[MAX_NR_CPUS]; struct domain_info *domain_info; struct cpu_domain_map **cd_map; - char dname[16], cpumask[256]; - char cpulist[1024]; + char cpulist[MAX_NR_CPUS]; char *line =3D NULL; u32 cpu, domain; u32 dcount =3D 0; --=20 2.43.0