linux: make UBSAN quiet

diff --git a/src/shared/linux/README b/src/shared/linux/README
index 3878233..46d5547 100644 (file)
--- a/src/shared/linux/README
+++ b/src/shared/linux/README
@@ -5,3 +5,4 @@ The files in this directory are copied from kernel-5.2, and the following modifi
 - bpf_insn.h: BPF_JMP_A() macro is also imported from include/linux/filter.h
 - dm-ioctl.h: set DM_VERSION_MINOR to 27
 - ethtool.h: define __KERNEL_DIV_ROUND_UP if not defined
+- ethtool.h: add casts in ethtool_cmd_speed()

diff --git a/src/shared/linux/ethtool.h b/src/shared/linux/ethtool.h
index 742f2fb..acf346b 100644 (file)
--- a/src/shared/linux/ethtool.h
+++ b/src/shared/linux/ethtool.h
@@ -126,7 +126,7 @@ static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,
 
 static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
 {
-       return (ep->speed_hi << 16) | ep->speed;
+       return ((__u32) ep->speed_hi << 16) | (__u32) ep->speed;
 }
 
 /* Device supports clause 22 register access to PHY or peripherals