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Date:      Fri, 19 Jan 2018 22:16:15 +0100
From:      Milan Obuch <freebsd-current@dino.sk>
To:        freebsd-current@freebsd.org
Subject:   Bug in /usr/src/sys/sys/sf_buf.h?
Message-ID:  <20180119221615.2ff5cfa4@zeta.dino.sk>

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Hi,

after updating to revision 328171, building 12-CURRENT kernel gives

cc -target armv7-gnueabihf-freebsd12.0
--sysroot=/usr/obj/usr/src/arm.armv7/tmp
-B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -c -O -pipe  -g -nostdinc  -I.
-I/usr/src/sys -I/usr/src/sys/contrib/libfdt
-I/usr/src/sys/gnu/dts/include -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS
-include opt_global.h -march=armv7a -funwind-tables -MD
-MF.depend.md.o -MTmd.o -ffreestanding -fwrapv -gdwarf-2 -Wall
-Wredundant-decls -Wnested-externs -Wstrict-prototypes
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -Wundef
-Wno-pointer-sign -D__printf__=__freebsd_kprintf__
-Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas
-Wno-error-tautological-compare -Wno-error-empty-body
-Wno-error-parentheses-equality -Wno-error-unused-function
-Wno-error-pointer-sign -Wno-error-shift-negative-value
-Wno-error-address-of-packed-member  -mfpu=none  -std=iso9899:1999
-Werror  /usr/src/sys/dev/md/md.c

In file included from /usr/src/sys/dev/md/md.c:90:

/usr/src/sys/sys/sf_buf.h:120:11: error: implicit declaration of
function 'PHYS_TO_DMAP' is invalid in C99
[-Werror,-Wimplicit-function-declaration]

return (PHYS_TO_DMAP(VM_PAGE_TO_PHYS((vm_page_t)sf)));

^

/usr/src/sys/sys/sf_buf.h:120:11: error: this function declaration is
not a prototype [-Werror,-Wstrict-prototypes]

2 errors generated.

Did a bug slipped in or am I doing something wrong? With revision
328159 nothing like this happened, and I see in svn update output
file /sys/sys/sf_buf.h being updated whne updating sources to revision
328171.

Regards,
Milan



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