[PATCH 4.9 156/175] ptp: dp83640: dont define PAGE0

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From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

commit 7366c23ff492ad260776a3ee1aaabba9fc773a8b upstream.

Building dp83640.c on arch/parisc/ produces a build warning for
PAGE0 being redefined. Since the macro is not used in the dp83640
driver, just make it a comment for documentation purposes.

In file included from ../drivers/net/phy/dp83640.c:23:
../drivers/net/phy/dp83640_reg.h:8: warning: "PAGE0" redefined
    8 | #define PAGE0                     0x0000
                 from ../drivers/net/phy/dp83640.c:11:
../arch/parisc/include/asm/page.h:187: note: this is the location of the previous definition
  187 | #define PAGE0   ((struct zeropage *)__PAGE_OFFSET)

Fixes: cb646e2b02b2 ("ptp: Added a clock driver for the National Semiconductor PHYTER.")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Richard Cochran <richard.cochran@xxxxxxxxxx>
Cc: John Stultz <john.stultz@xxxxxxxxxx>
Cc: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Link: https://lore.kernel.org/r/20210913220605.19682-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/phy/dp83640_reg.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/phy/dp83640_reg.h
+++ b/drivers/net/phy/dp83640_reg.h
@@ -4,7 +4,7 @@
 #ifndef HAVE_DP83640_REGISTERS
 #define HAVE_DP83640_REGISTERS
 
-#define PAGE0                     0x0000
+/* #define PAGE0                  0x0000 */
 #define PHYCR2                    0x001c /* PHY Control Register 2 */
 
 #define PAGE4                     0x0004





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