Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to compat_time.h

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On 01/16/2018 03:18 AM, Deepa Dinamani wrote:
> All the current architecture specific defines for these
> are the same. Refactor these common defines to a common
> header file.
> 
> The new common linux/compat_time.h is also useful as it
> will eventually be used to hold all the defines that
> are needed for compat time types that support non y2038
> safe types. New architectures need not have to define these
> new types as they will only use new y2038 safe syscalls.
> This file can be deleted after y2038 when we stop supporting
> non y2038 safe syscalls.

You are now include a <linux/*.h> from several asm files
(
 arch/arm64/include/asm/stat.h   
 arch/s390/include/asm/elf.h     
 arch/x86/include/asm/ftrace.h   
 arch/x86/include/asm/sys_ia32.h 
)
It works, and it is done in many places, but it looks somewhat weird.
Would it make sense to have an asm-generic/compate-time.h instead? Asking for
opinions here.

> 
> The patch also requires an operation similar to:
> 
> git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

some comments from the s390 perspective:

> --- a/arch/s390/hypfs/hypfs_sprp.c
> +++ b/arch/s390/hypfs/hypfs_sprp.c
ok.
[...]
> --- a/arch/s390/include/asm/elf.h
> +++ b/arch/s390/include/asm/elf.h
> @@ -126,7 +126,7 @@
>   */
> 
>  #include <asm/ptrace.h>
> -#include <asm/compat.h>
> +#include <linux/compat.h>
>  #include <asm/syscall.h>
>  #include <asm/user.h>

see above.
[...]
> --- a/arch/s390/kvm/priv.c
> +++ b/arch/s390/kvm/priv.c
ok
> --- a/arch/s390/pci/pci_clp.c
> +++ b/arch/s390/pci/pci_clp.c
ok
> --- a/drivers/s390/block/dasd_ioctl.c
> +++ b/drivers/s390/block/dasd_ioctl.c
ok 
> --- a/drivers/s390/char/fs3270.c
> +++ b/drivers/s390/char/fs3270.c
ok
> --- a/drivers/s390/char/sclp_ctl.c
> +++ b/drivers/s390/char/sclp_ctl.c
ok
> --- a/drivers/s390/char/vmcp.c
> +++ b/drivers/s390/char/vmcp.c
ok
> --- a/drivers/s390/cio/chsc_sch.c
> +++ b/drivers/s390/cio/chsc_sch.c
ok

> --- a/drivers/s390/net/qeth_core_main.c
> +++ b/drivers/s390/net/qeth_core_main.c
> @@ -32,7 +32,7 @@
>  #include <asm/chpid.h>
>  #include <asm/io.h>
>  #include <asm/sysinfo.h>
> -#include <asm/compat.h>
> +#include <linux/compat.h>
>  #include <asm/diag.h>
>  #include <asm/cio.h>
>  #include <asm/ccwdev.h>

Can you move that into the other includes (where all the other <linux/*> includes are.

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