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UPSTREAM: MIPS: vdso: Define BUILD_VDSO32 when building a 32bit kernel

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The confinement of the 32bit specific VDSO functions missed to define
BUILD_VDSO32 when building a 32bit MIPS kernel:

arch/mips/vdso/vgettimeofday.c: In function __vdso_clock_gettime:
arch/mips/vdso/vgettimeofday.c:17:9: error: implicit declaration of function __cvdso_clock_gettime32

arch/mips/vdso/vgettimeofday.c: In function __vdso_clock_getres:
arch/mips/vdso/vgettimeofday.c:39:9: error: implicit declaration of function __cvdso_clock_getres_time32

Force the define for 32bit builds in the VDSO Makefile.

Fixes: bf279849ad59 ("lib/vdso: Build 32 bit specific functions in the right context")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul Burton <paulburton@kernel.org>
Link: https://lore.kernel.org/r/87d0bjfaqa.fsf@nanos.tec.linutronix.de

(cherry picked from commit 99570c3da96a0f7aa11c6ad4981776f3adabf3b5)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I00c1cbdbca17f9b9d018e32115ed12cff5c1db18
This commit is contained in:
Thomas Gleixner 2020-01-16 20:43:41 +01:00 • committed by Greg Kroah-Hartman
commit b1ab580076
1 changed files with 4 additions and 0 deletions
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4
arch/mips/vdso/Makefile
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@ -18,6 +18,10 @@ ccflags-vdso := \
$(filter -mno-loongson-%,$(KBUILD_CFLAGS)) \
-D__VDSO__
ifndef CONFIG_64BIT
ccflags-vdso += -DBUILD_VDSO32
endif
ifdef CONFIG_CC_IS_CLANG
ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS))
endif