From: Andre Muezerie <andremue@linux.microsoft.com>
To: andremue@linux.microsoft.com
Cc: dev@dpdk.org, hkalra@marvell.com, kirankumark@marvell.com,
ndabilpuram@marvell.com, skori@marvell.com,
skoteshwar@marvell.com
Subject: [PATCH v3] drivers: remove __rte_used from functions for compatibility with MSVC
Date: Wed, 28 May 2025 06:22:51 -0700 [thread overview]
Message-ID: <1748438571-20477-1-git-send-email-andremue@linux.microsoft.com> (raw)
In-Reply-To: <1743731269-5936-1-git-send-email-andremue@linux.microsoft.com>
With gcc, the macro __rte_used translates to __attribute__((used)).
MSVC has something to the same effect, but harder to use and with some
limitations (one being that it cannot be used with "static"). Therefore,
it makes sense to avoid __rte_used in some cases.
The functions modified in this patch don't really need to use __rte_used.
Instead, these functions can be involved in same ifdefs used in the
callers. That way, they are only defined when needed (when
someone is actually calling the function). Doing so makes the code
compatible with MSVC and avoids compiler warnings about functions being
defined but not used.
Signed-off-by: Andre Muezerie <andremue@linux.microsoft.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
drivers/net/cnxk/cn10k_rx_select.c | 4 +++-
drivers/net/cnxk/cn10k_tx_select.c | 4 +++-
drivers/net/cnxk/cn20k_rx_select.c | 4 +++-
drivers/net/cnxk/cn20k_tx_select.c | 4 +++-
drivers/net/cnxk/cn9k_rx_select.c | 4 +++-
drivers/net/cnxk/cn9k_tx_select.c | 4 +++-
6 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/net/cnxk/cn10k_rx_select.c b/drivers/net/cnxk/cn10k_rx_select.c
index fe1f0dda73..5258d7f745 100644
--- a/drivers/net/cnxk/cn10k_rx_select.c
+++ b/drivers/net/cnxk/cn10k_rx_select.c
@@ -5,7 +5,8 @@
#include "cn10k_ethdev.h"
#include "cn10k_rx.h"
-static __rte_used void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static void
pick_rx_func(struct rte_eth_dev *eth_dev,
const eth_rx_burst_t rx_burst[NIX_RX_OFFLOAD_MAX])
{
@@ -21,6 +22,7 @@ pick_rx_func(struct rte_eth_dev *eth_dev,
rte_atomic_thread_fence(rte_memory_order_release);
}
+#endif
static uint16_t __rte_noinline __rte_hot __rte_unused
cn10k_nix_flush_rx(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts)
diff --git a/drivers/net/cnxk/cn10k_tx_select.c b/drivers/net/cnxk/cn10k_tx_select.c
index 56fddac5a0..066c65c9b9 100644
--- a/drivers/net/cnxk/cn10k_tx_select.c
+++ b/drivers/net/cnxk/cn10k_tx_select.c
@@ -5,7 +5,8 @@
#include "cn10k_ethdev.h"
#include "cn10k_tx.h"
-static __rte_used inline void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static inline void
pick_tx_func(struct rte_eth_dev *eth_dev,
const eth_tx_burst_t tx_burst[NIX_TX_OFFLOAD_MAX])
{
@@ -19,6 +20,7 @@ pick_tx_func(struct rte_eth_dev *eth_dev,
rte_eth_fp_ops[eth_dev->data->port_id].tx_pkt_burst =
eth_dev->tx_pkt_burst;
}
+#endif
#if defined(RTE_ARCH_ARM64)
static int
diff --git a/drivers/net/cnxk/cn20k_rx_select.c b/drivers/net/cnxk/cn20k_rx_select.c
index 25c79434cd..d60f4e62f7 100644
--- a/drivers/net/cnxk/cn20k_rx_select.c
+++ b/drivers/net/cnxk/cn20k_rx_select.c
@@ -5,7 +5,8 @@
#include "cn20k_ethdev.h"
#include "cn20k_rx.h"
-static __rte_used void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static void
pick_rx_func(struct rte_eth_dev *eth_dev, const eth_rx_burst_t rx_burst[NIX_RX_OFFLOAD_MAX])
{
struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
@@ -18,6 +19,7 @@ pick_rx_func(struct rte_eth_dev *eth_dev, const eth_rx_burst_t rx_burst[NIX_RX_O
rte_atomic_thread_fence(rte_memory_order_release);
}
+#endif
static uint16_t __rte_noinline __rte_hot __rte_unused
cn20k_nix_flush_rx(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts)
diff --git a/drivers/net/cnxk/cn20k_tx_select.c b/drivers/net/cnxk/cn20k_tx_select.c
index fb62b54a5f..95cd1148a1 100644
--- a/drivers/net/cnxk/cn20k_tx_select.c
+++ b/drivers/net/cnxk/cn20k_tx_select.c
@@ -5,7 +5,8 @@
#include "cn20k_ethdev.h"
#include "cn20k_tx.h"
-static __rte_used inline void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static inline void
pick_tx_func(struct rte_eth_dev *eth_dev, const eth_tx_burst_t tx_burst[NIX_TX_OFFLOAD_MAX])
{
struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
@@ -16,6 +17,7 @@ pick_tx_func(struct rte_eth_dev *eth_dev, const eth_tx_burst_t tx_burst[NIX_TX_O
if (eth_dev->data->dev_started)
rte_eth_fp_ops[eth_dev->data->port_id].tx_pkt_burst = eth_dev->tx_pkt_burst;
}
+#endif
#if defined(RTE_ARCH_ARM64)
static int
diff --git a/drivers/net/cnxk/cn9k_rx_select.c b/drivers/net/cnxk/cn9k_rx_select.c
index 0d4031ddeb..bb943e694d 100644
--- a/drivers/net/cnxk/cn9k_rx_select.c
+++ b/drivers/net/cnxk/cn9k_rx_select.c
@@ -5,7 +5,8 @@
#include "cn9k_ethdev.h"
#include "cn9k_rx.h"
-static __rte_used void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static void
pick_rx_func(struct rte_eth_dev *eth_dev,
const eth_rx_burst_t rx_burst[NIX_RX_OFFLOAD_MAX])
{
@@ -19,6 +20,7 @@ pick_rx_func(struct rte_eth_dev *eth_dev,
rte_eth_fp_ops[eth_dev->data->port_id].rx_pkt_burst =
eth_dev->rx_pkt_burst;
}
+#endif
#if defined(RTE_ARCH_ARM64)
static void
diff --git a/drivers/net/cnxk/cn9k_tx_select.c b/drivers/net/cnxk/cn9k_tx_select.c
index 497449b1c4..784faa3b8b 100644
--- a/drivers/net/cnxk/cn9k_tx_select.c
+++ b/drivers/net/cnxk/cn9k_tx_select.c
@@ -5,7 +5,8 @@
#include "cn9k_ethdev.h"
#include "cn9k_tx.h"
-static __rte_used void
+#if defined(RTE_ARCH_ARM64) && !defined(CNXK_DIS_TMPLT_FUNC)
+static void
pick_tx_func(struct rte_eth_dev *eth_dev,
const eth_tx_burst_t tx_burst[NIX_TX_OFFLOAD_MAX])
{
@@ -19,6 +20,7 @@ pick_tx_func(struct rte_eth_dev *eth_dev,
rte_eth_fp_ops[eth_dev->data->port_id].tx_pkt_burst =
eth_dev->tx_pkt_burst;
}
+#endif
#if defined(RTE_ARCH_ARM64)
static int
--
2.49.0.vfs.0.3
next prev parent reply other threads:[~2025-05-28 13:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-04 1:47 [PATCH] " Andre Muezerie
2025-05-27 5:02 ` [EXTERNAL] " Jerin Jacob
2025-05-27 7:02 ` Pavan Nikhilesh Bhagavatula
2025-05-27 19:49 ` [PATCH v2] " Andre Muezerie
2025-05-28 6:27 ` Jerin Jacob
2025-05-28 13:22 ` Andre Muezerie [this message]
2025-05-29 5:53 ` [PATCH v3] " Jerin Jacob
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