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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2024 14:24:43.3530 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c1c3a7ee-e25c-4d86-b9a5-08dcafda30b6 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DA.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8318 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1722263101407116600 When building with gcc with -finstrument-functions, optimization level -O1, CONFIG_HYPFS=3Dy and # CONFIG_HAS_SCHED_GRANULARITY is not set, the the following build warning (error) is encountered: common/sched/cpupool.c: In function =E2=80=98cpupool_gran_write=E2=80=99: common/sched/cpupool.c:1220:26: error: =E2=80=98gran=E2=80=99 may be used u= ninitialized [-Werror=3Dmaybe-uninitialized] 1220 | 0 : cpupool_check_granularity(gran); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ common/sched/cpupool.c:1207:21: note: =E2=80=98gran=E2=80=99 declared here 1207 | enum sched_gran gran; | ^~~~ This is a false positive. Silence the warning (error) by initializing the variable. Signed-off-by: Stewart Hildebrand Reviewed-by: Juergen Gross --- xen/common/sched/cpupool.c | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/common/sched/cpupool.c b/xen/common/sched/cpupool.c index 57dfee26f21f..3d02c7b70690 100644 --- a/xen/common/sched/cpupool.c +++ b/xen/common/sched/cpupool.c @@ -103,6 +103,7 @@ custom_param("sched-gran", sched_select_granularity); #elif defined(CONFIG_HYPFS) static int sched_gran_get(const char *str, enum sched_gran *mode) { + *mode =3D SCHED_GRAN_cpu; return -EINVAL; } #endif --=20 2.45.2