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-rw-r--r--hw/ide/ahci.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index 68d5074..79a463d 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -127,7 +127,7 @@
#define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */
#define PORT_CMD_START (1 << 0) /* Enable port DMA engine */
-#define PORT_CMD_ICC_MASK (0xf << 28) /* i/f ICC state mask */
+#define PORT_CMD_ICC_MASK (0xfU << 28) /* i/f ICC state mask */
#define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */
#define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */
#define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */
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