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tools: hv: suppress the invalid warning for packed member alignment

PATCH In review Saurabh Sengar 2 participants 2 messages Jul 5, 2024

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Memory management Hyper-V/Azure core and drivers
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Saurabh Sengar

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PATCH v2 1/1 tools: hv: suppress the invalid warning for packed member alignment

Packed struct vmbus_bufring is 4096 byte aligned and the reporting warning is for the first member of that struct which shouldn't add any offset to create alignment issue.

Suppress the warning by adding -Wno-address-of-packed-member flag to gcc.

Fixes 45bab4d74651 ("tools: hv: Add vmbus_bufring")
Reported-by kernel test robot <[email protected]>
Closes https://lore.kernel.org/all/[email protected]/ open here
Signed-off-by Saurabh Sengar <[email protected]>

---
[V2] Added 'Fixes' tag

 tools/hv/Makefile | 1 +
 1 file changed, 1 insertion(+)
tools/hv/Makefile +1 -0
index bb52871..2e60e2c 100644
@@ -17,6 +17,7 @@ endif
 MAKEFLAGS += -r
 
 override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
+override CFLAGS += -Wno-address-of-packed-member
 
 ALL_TARGETS := hv_kvp_daemon hv_vss_daemon
 ifneq ($(ARCH), aarch64)
Signature · 1 line
1.8.3.1