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From: Andre Muezerie <andremue@linux.microsoft.com>
To: roretzla@linux.microsoft.com
Cc: aman.deep.singh@intel.com, anatoly.burakov@intel.com,
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Subject: [PATCH v10 22/30] examples/l3fwd: replace packed attributes
Date: Wed, 8 Jan 2025 18:46:06 -0800
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MSVC struct packing is not compatible with GCC. Replace macro
__rte_packed with __rte_packed_begin to push existing pack value
and set packing to 1-byte and macro __rte_packed_end to restore
the pack value prior to the push.
Macro __rte_packed_end is deliberately utilized to trigger a
MSVC compiler warning if no existing packing has been pushed allowing
easy identification of locations where the __rte_packed_begin is
missing.
Signed-off-by: Andre Muezerie <andremue@linux.microsoft.com>
---
examples/l3fwd/l3fwd_route.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/examples/l3fwd/l3fwd_route.h b/examples/l3fwd/l3fwd_route.h
index 62263c3540..b02b9cc11c 100644
--- a/examples/l3fwd/l3fwd_route.h
+++ b/examples/l3fwd/l3fwd_route.h
@@ -36,21 +36,21 @@ struct ipv6_l3fwd_route {
uint8_t if_out;
};
-struct ipv4_5tuple {
+struct __rte_packed_begin ipv4_5tuple {
uint32_t ip_dst;
uint32_t ip_src;
uint16_t port_dst;
uint16_t port_src;
uint8_t proto;
-} __rte_packed;
+} __rte_packed_end;
-struct ipv6_5tuple {
+struct __rte_packed_begin ipv6_5tuple {
uint8_t ip_dst[IPV6_ADDR_LEN];
uint8_t ip_src[IPV6_ADDR_LEN];
uint16_t port_dst;
uint16_t port_src;
uint8_t proto;
-} __rte_packed;
+} __rte_packed_end;
struct lpm_route_rule {
union {
--
2.47.0.vfs.0.3