[OpenWrt-Devel] [PATCH] kernel: re-enable MIPS VDSO

[Hauke Mehrtens]

On 09/21/2018 08:41 PM, Kevin Darbyshire-Bryant wrote:
> kernel upstream commit 9efcaa7c4afba5628f2650a76f69c798f47eeb18 to 4.14
> itself a backport of 0f02cfbc3d9e413d450d8d0fd660077c23f67eff has
> resolved the cache line issues that led to us disabling VDSO by default
> on MIPS.
> 
> Remove our force disable patch:
> 
> pending-4.14/206-mips-disable-vdso.patch
> 
> Signed-off-by: Kevin Darbyshire-Bryant <ldir at darbyshire-bryant.me.uk>

Acked-by: Hauke Mehrtens <hauke at hauke-m.de>

This will also get fixed in kernel 4.9 and 4.4, so we can later remove
this patch also for these kernel versions.


> ---
>  .../pending-4.14/206-mips-disable-vdso.patch  | 23 -------------------
>  1 file changed, 23 deletions(-)
>  delete mode 100644 target/linux/generic/pending-4.14/206-mips-disable-vdso.patch
> 
> diff --git a/target/linux/generic/pending-4.14/206-mips-disable-vdso.patch b/target/linux/generic/pending-4.14/206-mips-disable-vdso.patch
> deleted file mode 100644
> index f3c58dcd3a..0000000000
> --- a/target/linux/generic/pending-4.14/206-mips-disable-vdso.patch
> +++ /dev/null
> @@ -1,23 +0,0 @@
> -From: Felix Fietkau <nbd at nbd.name>
> -Subject: kernel: disable MIPS VDSO by default until the cache issues have been resolved
> -
> -lede-commit: 1185e645a773c86aa88cf04d0e2911dc62eb43f5
> -Signed-off-by: Felix Fietkau <nbd at nbd.name>
> ----
> - arch/mips/vdso/Makefile | 4 ++--
> - 1 file changed, 2 insertions(+), 2 deletions(-)
> -
> ---- a/arch/mips/vdso/Makefile
> -+++ b/arch/mips/vdso/Makefile
> -@@ -30,9 +30,9 @@ aflags-vdso := $(ccflags-vdso) \
> - ifndef CONFIG_CPU_MIPSR6
> -   ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
> -     $(warning MIPS VDSO requires binutils >= 2.25)
> --    obj-vdso-y := $(filter-out gettimeofday.o, $(obj-vdso-y))
> --    ccflags-vdso += -DDISABLE_MIPS_VDSO
> -   endif
> -+  obj-vdso-y := $(filter-out gettimeofday.o, $(obj-vdso-y))
> -+  ccflags-vdso += -DDISABLE_MIPS_VDSO
> - endif
> - 
> - # VDSO linker flags.
> 


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