linux-kernel - [PATCH] pds_core: add stub macros for pdsc_debufs_* when ! CONFIG_DEBUG

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Date:   Tue,  2 May 2023 10:52:20 -0400
From:   Tom Rix <trix@...hat.com>
To:     shannon.nelson@....com, brett.creeley@....com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] pds_core: add stub macros for pdsc_debufs_* when ! CONFIG_DEBUG_FS

When CONFIG_DEBUG_FS is not defined there is this representative link error
ld: drivers/net/ethernet/amd/pds_core/main.o: in function `pdsc_remove':
main.c:(.text+0x35c): undefined reference to `pdsc_debugfs_del_dev

Avoid these link errors when CONFIG_DEBUG_FS is not defined by
providing some empty macros.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/net/ethernet/amd/pds_core/core.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/amd/pds_core/core.h b/drivers/net/ethernet/amd/pds_core/core.h
index e545fafc4819..0b39a6dc65c8 100644
--- a/drivers/net/ethernet/amd/pds_core/core.h
+++ b/drivers/net/ethernet/amd/pds_core/core.h
@@ -261,6 +261,7 @@ int pdsc_dl_enable_validate(struct devlink *dl, u32 id,
 
 void __iomem *pdsc_map_dbpage(struct pdsc *pdsc, int page_num);
 
+#ifdef CONFIG_DEBUG_FS
 void pdsc_debugfs_create(void);
 void pdsc_debugfs_destroy(void);
 void pdsc_debugfs_add_dev(struct pdsc *pdsc);
@@ -270,6 +271,17 @@ void pdsc_debugfs_add_viftype(struct pdsc *pdsc);
 void pdsc_debugfs_add_irqs(struct pdsc *pdsc);
 void pdsc_debugfs_add_qcq(struct pdsc *pdsc, struct pdsc_qcq *qcq);
 void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq);
+#else
+#define pdsc_debugfs_create()
+#define pdsc_debugfs_destroy()
+#define pdsc_debugfs_add_dev(pdsc)
+#define pdsc_debugfs_del_dev(pdsc)
+#define pdsc_debugfs_add_ident(pdsc)
+#define pdsc_debugfs_add_viftype(pdsc)
+#define pdsc_debugfs_add_irqs(pdsc)
+#define pdsc_debugfs_add_qcq(pdsc, qcq)
+#define pdsc_debugfs_del_qcq(qcq)
+#endif
 
 int pdsc_err_to_errno(enum pds_core_status_code code);
 bool pdsc_is_fw_running(struct pdsc *pdsc);
-- 
2.27.0