raid/cpu: Use memcpy() instead of type punning

The vendor may not be suitably aligned for uint32_t *. Signed-off-by: Tavian Barnes <[email protected]>
koverstreet · Jul 12, 2024 · 53d7722 · 53d7722
1 parent 8b06995
commit 53d7722
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/raid/cpu.h b/raid/cpu.h
@@ -57,9 +57,9 @@ static inline void raid_cpu_info(char *vendor, unsigned *family, unsigned *model
 
 	raid_cpuid(0, 0, reg);
 
-	((uint32_t*)vendor)[0] = reg[1];
-	((uint32_t*)vendor)[1] = reg[3];
-	((uint32_t*)vendor)[2] = reg[2];
+	memcpy(vendor, &reg[1], 4);
+	memcpy(vendor + 4, &reg[3], 4);
+	memcpy(vendor + 8, &reg[2], 4);
 	vendor[12] = 0;
 
 	raid_cpuid(1, 0, reg);