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 @@ -5,7 +5,7 @@ #ifndef HAVE_DP83640_REGISTERS #define HAVE_DP83640_REGISTERS -#define PAGE0 0x0000 +/* #define PAGE0 0x0000 */ #define PHYCR2 0x001c /* PHY Control Register 2 */ #define PAGE4 0x0004