From cd91b85935d8b8017feb76b7b7984b44d08a6261 Mon Sep 17 00:00:00 2001
From: Donato Capitella <donato.capitella@reversec.com>
Date: Sun, 1 Feb 2026 10:27:12 +0000
Subject: [PATCH] Fix: Provide inline dummy SMI symbols when SMI is disabled to
 prevent link errors

---
 projects/rccl/src/include/amdsmi_wrap.h   | 9 +++++++++
 projects/rccl/src/include/rocm_smi_wrap.h | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/projects/rccl/src/include/amdsmi_wrap.h b/projects/rccl/src/include/amdsmi_wrap.h
index 8436e72080..0e8918e5bc 100644
--- a/projects/rccl/src/include/amdsmi_wrap.h
+++ b/projects/rccl/src/include/amdsmi_wrap.h
@@ -7,11 +7,20 @@
 #include "amd_smi/amdsmi.h"
 #include "nccl.h"
 
+#ifdef USE_AMDSMI
 ncclResult_t amd_smi_init();
 ncclResult_t amd_smi_shutdown();
 ncclResult_t amd_smi_getNumDevice(uint32_t* num_devs);
 ncclResult_t amd_smi_getDevicePciBusIdString(uint32_t deviceIndex, char* pciBusId, size_t len);
 ncclResult_t amd_smi_getDeviceIndexByPciBusId(const char* pciBusId, uint32_t* deviceIndex);
 ncclResult_t amd_smi_getLinkInfo(int srcDev, int dstDev, amdsmi_link_type_t* type, int *hops, int *count);
+#else
+inline ncclResult_t amd_smi_init() { return ncclSuccess; }
+inline ncclResult_t amd_smi_shutdown() { return ncclSuccess; }
+inline ncclResult_t amd_smi_getNumDevice(uint32_t* num_devs) { *num_devs = 0; return ncclSuccess; }
+inline ncclResult_t amd_smi_getDevicePciBusIdString(uint32_t deviceIndex, char* pciBusId, size_t len) { if (len > 0) pciBusId[0] = '\0'; return ncclSuccess; }
+inline ncclResult_t amd_smi_getDeviceIndexByPciBusId(const char* pciBusId, uint32_t* deviceIndex) { return ncclInternalError; }
+inline ncclResult_t amd_smi_getLinkInfo(int srcDev, int dstDev, amdsmi_link_type_t* type, int *hops, int *count) { *hops=1; *count=1; return ncclSuccess; }
+#endif
 
 #endif
diff --git a/projects/rccl/src/include/rocm_smi_wrap.h b/projects/rccl/src/include/rocm_smi_wrap.h
index 87b1f2a72f..6787ed1307 100644
--- a/projects/rccl/src/include/rocm_smi_wrap.h
+++ b/projects/rccl/src/include/rocm_smi_wrap.h
@@ -29,10 +29,18 @@ THE SOFTWARE.
 #endif
 #include "nccl.h"
 
+#ifdef USE_ROCMSMI
 ncclResult_t rocm_smi_init();
 ncclResult_t rocm_smi_getNumDevice(uint32_t* num_devs);
 ncclResult_t rocm_smi_getDevicePciBusIdString(uint32_t deviceIndex, char* pciBusId, size_t len);
 ncclResult_t rocm_smi_getDeviceIndexByPciBusId(const char* pciBusId, uint32_t* deviceIndex);
 ncclResult_t rocm_smi_getLinkInfo(int srcDev, int dstDev, RSMI_IO_LINK_TYPE* rsmi_type, int *hops, int *count);
+#else
+inline ncclResult_t rocm_smi_init() { return ncclSuccess; }
+inline ncclResult_t rocm_smi_getNumDevice(uint32_t* num_devs) { *num_devs = 0; return ncclSuccess; }
+inline ncclResult_t rocm_smi_getDevicePciBusIdString(uint32_t deviceIndex, char* pciBusId, size_t len) { if (len > 0) pciBusId[0] = '\0'; return ncclSuccess; }
+inline ncclResult_t rocm_smi_getDeviceIndexByPciBusId(const char* pciBusId, uint32_t* deviceIndex) { return ncclInternalError; }
+inline ncclResult_t rocm_smi_getLinkInfo(int srcDev, int dstDev, RSMI_IO_LINK_TYPE* rsmi_type, int *hops, int *count) { *hops=1; *count=1; return ncclSuccess; }
+#endif
 
 #endif