[PATCH 5.13 091/127] arm64: clean vdso & vdso32 files

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From: Andrew Delgadillo <adelg@xxxxxxxxxx>

[ Upstream commit 017f5fb9ce793e3558db94ee72068622bc0b79db ]

commit a5b8ca97fbf8 ("arm64: do not descend to vdso directories twice")
changes the cleaning behavior of arm64's vdso files, in that vdso.lds,
vdso.so, and vdso.so.dbg are not removed upon a 'make clean/mrproper':

$ make defconfig ARCH=arm64
$ make ARCH=arm64
$ make mrproper ARCH=arm64
$ git clean -nxdf
Would remove arch/arm64/kernel/vdso/vdso.lds
Would remove arch/arm64/kernel/vdso/vdso.so
Would remove arch/arm64/kernel/vdso/vdso.so.dbg

To remedy this, manually descend into arch/arm64/kernel/vdso upon
cleaning.

After this commit:
$ make defconfig ARCH=arm64
$ make ARCH=arm64
$ make mrproper ARCH=arm64
$ git clean -nxdf
<empty>

Similar results are obtained for the vdso32 equivalent.

Signed-off-by: Andrew Delgadillo <adelg@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Fixes: a5b8ca97fbf8 ("arm64: do not descend to vdso directories twice")
Link: https://lore.kernel.org/r/20210810231755.1743524-1-adelg@xxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index b52481f0605d..02997b253dee 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -181,6 +181,8 @@ archprepare:
 # We use MRPROPER_FILES and CLEAN_FILES now
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
+	$(Q)$(MAKE) $(clean)=arch/arm64/kernel/vdso
+	$(Q)$(MAKE) $(clean)=arch/arm64/kernel/vdso32
 
 ifeq ($(KBUILD_EXTMOD),)
 # We need to generate vdso-offsets.h before compiling certain files in kernel/.
-- 
2.30.2




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