netdev - [PATCH] ethernet: ti: am65-cpts: Add missing inline qualifier to stub functions

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Date:   Fri, 15 May 2020 15:33:18 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH] ethernet: ti: am65-cpts: Add missing inline qualifier to stub functions

When building with Clang:

In file included from drivers/net/ethernet/ti/am65-cpsw-ethtool.c:15:
drivers/net/ethernet/ti/am65-cpts.h:58:12: warning: unused function
'am65_cpts_ns_gettime' [-Wunused-function]
static s64 am65_cpts_ns_gettime(struct am65_cpts *cpts)
           ^
drivers/net/ethernet/ti/am65-cpts.h:63:12: warning: unused function
'am65_cpts_estf_enable' [-Wunused-function]
static int am65_cpts_estf_enable(struct am65_cpts *cpts,
           ^
drivers/net/ethernet/ti/am65-cpts.h:69:13: warning: unused function
'am65_cpts_estf_disable' [-Wunused-function]
static void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx)
            ^
3 warnings generated.

These functions need to be marked as inline, which adds __maybe_unused,
to avoid these warnings, which is the pattern for stub functions.

Fixes: ec008fa2a9e5 ("ethernet: ti: am65-cpts: add routines to support taprio offload")
Link: https://github.com/ClangBuiltLinux/linux/issues/1026
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
 drivers/net/ethernet/ti/am65-cpts.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ti/am65-cpts.h b/drivers/net/ethernet/ti/am65-cpts.h
index 98c1960b20b9..cf9fbc28fd03 100644
--- a/drivers/net/ethernet/ti/am65-cpts.h
+++ b/drivers/net/ethernet/ti/am65-cpts.h
@@ -55,18 +55,18 @@ static inline void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en)
 {
 }
 
-static s64 am65_cpts_ns_gettime(struct am65_cpts *cpts)
+static inline s64 am65_cpts_ns_gettime(struct am65_cpts *cpts)
 {
 	return 0;
 }
 
-static int am65_cpts_estf_enable(struct am65_cpts *cpts,
-				 int idx, struct am65_cpts_estf_cfg *cfg)
+static inline int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx,
+					struct am65_cpts_estf_cfg *cfg)
 {
 	return 0;
 }
 
-static void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx)
+static inline void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx)
 {
 }
 #endif

base-commit: bdecf38f228bcca73b31ada98b5b7ba1215eb9c9
-- 
2.26.2