linux-kernel - [PATCH 4/4] i40e: Convert pf

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Date:	Fri, 30 Aug 2013 16:06:10 -0700
From:	Joe Perches <joe@...ches.com>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	Greg Rose <gregory.v.rose@...el.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
	Alex Duyck <alexander.h.duyck@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	Tushar Dave <tushar.n.dave@...el.com>,
	e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] i40e: Convert pf_<level> macros to functions

Reduces object size ~10KB by removing "%s: ", __func__
and using the %pf extension and __builtin_return_address(0)
to emit the function name.

$ size drivers/net/ethernet/intel/i40e/built-in.o*
   text	   data	    bss	    dec	    hex	filename
 166271	  36043	  50032	 252346	  3d9ba	drivers/net/ethernet/intel/i40e/built-in.o.new
 177030	  35867	  49936	 262833	  402b1	drivers/net/ethernet/intel/i40e/built-in.o.old

Signed-off-by: Joe Perches <joe@...ches.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h      | 12 ++++----
 drivers/net/ethernet/intel/i40e/i40e_main.c | 45 +++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index a39d1c6..9e61ce90 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -565,11 +565,11 @@ void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 
 /* i40e_pf message logging */
 
-#define pf_err(pf, fmt, ...)						\
-	dev_err(&(pf)->pdev->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
-#define pf_warn(pf, fmt, ...)						\
-	dev_warn(&(pf)->pdev->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
-#define pf_info(pf, fmt, ...)						\
-	dev_info(&(pf)->pdev->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
+__printf(2, 3)
+void pf_err(const struct i40e_pf *pf, const char *fmt, ...);
+__printf(2, 3)
+void pf_warn(const struct i40e_pf *pf, const char *fmt, ...);
+__printf(2, 3)
+void pf_info(const struct i40e_pf *pf, const char *fmt, ...);
 
 #endif /* _I40E_H_ */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index d1f6744..4366de3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7340,3 +7340,48 @@ static void __exit i40e_exit_module(void)
 	i40e_dbg_exit();
 }
 module_exit(i40e_exit_module);
+
+__printf(2, 3)
+void pf_err(const struct i40e_pf *pf, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	dev_err(&pf->pdev->dev, "%pf: %pV",
+		__builtin_return_address(0), &vaf);
+
+	va_end(args);
+}
+
+__printf(2, 3)
+void pf_warn(const struct i40e_pf *pf, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	dev_warn(&pf->pdev->dev, "%pf: %pV",
+		 __builtin_return_address(0), &vaf);
+
+	va_end(args);
+}
+
+__printf(2, 3)
+void pf_info(const struct i40e_pf *pf, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	dev_info(&pf->pdev->dev, "%pf: %pV",
+		 __builtin_return_address(0), &vaf);
+
+	va_end(args);
+}
-- 
1.8.1.2.459.gbcd45b4.dirty

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