Subject: Re: linux-next: manual merge of the akpm-current tree with the powerpc tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 17 Dec 2020 11:48:45 +1100

Hi all,

On Tue, 8 Dec 2020 20:40:16 +1100 Stephen Rothwell <[email-masked]> wrote:
>
> Today's linux-next merge of the akpm-current tree got conflicts in:
> 
>   drivers/misc/lkdtm/Makefile
>   drivers/misc/lkdtm/lkdtm.h
>   tools/testing/selftests/lkdtm/tests.txt
> 
> between commit:
> 
>   3ba150fb2120 ("lkdtm/powerpc: Add SLB multihit test")
> 
> from the powerpc tree and commit:
> 
>   014a486edd8a ("drivers/misc/lkdtm: add new file in LKDTM to test fortified strscpy")
> 
> from the akpm-current tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> 
> diff --cc drivers/misc/lkdtm/Makefile
> index 5a92c74eca92,d898f7b22045..000000000000
> --- a/drivers/misc/lkdtm/Makefile
> +++ b/drivers/misc/lkdtm/Makefile
> @@@ -10,7 -10,7 +10,8 @@@ lkdtm-$(CONFIG_LKDTM)		+= rodata_objcop
>   lkdtm-$(CONFIG_LKDTM)		+= usercopy.o
>   lkdtm-$(CONFIG_LKDTM)		+= stackleak.o
>   lkdtm-$(CONFIG_LKDTM)		+= cfi.o
> + lkdtm-$(CONFIG_LKDTM)		+= fortify.o
>  +lkdtm-$(CONFIG_PPC_BOOK3S_64)	+= powerpc.o
>   
>   KASAN_SANITIZE_stackleak.o	:= n
>   KCOV_INSTRUMENT_rodata.o	:= n
> diff --cc drivers/misc/lkdtm/lkdtm.h
> index 79ec05c18dd1,6aa6d6a1a839..000000000000
> --- a/drivers/misc/lkdtm/lkdtm.h
> +++ b/drivers/misc/lkdtm/lkdtm.h
> @@@ -102,7 -104,7 +104,10 @@@ void lkdtm_STACKLEAK_ERASING(void)
>   /* cfi.c */
>   void lkdtm_CFI_FORWARD_PROTO(void);
>   
> + /* fortify.c */
> + void lkdtm_FORTIFIED_STRSCPY(void);
> + 
>  +/* powerpc.c */
>  +void lkdtm_PPC_SLB_MULTIHIT(void);
>  +
>   #endif
> diff --cc tools/testing/selftests/lkdtm/tests.txt
> index 18e4599863c0,92ba4cc41314..000000000000
> --- a/tools/testing/selftests/lkdtm/tests.txt
> +++ b/tools/testing/selftests/lkdtm/tests.txt
> @@@ -68,4 -68,4 +68,5 @@@ USERCOPY_STACK_BEYON
>   USERCOPY_KERNEL
>   STACKLEAK_ERASING OK: the rest of the thread stack is properly erased
>   CFI_FORWARD_PROTO
> + FORTIFIED_STRSCPY
>  +PPC_SLB_MULTIHIT Recovered

These conflicts are now between the powerpc tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell