2016-04-15 10:38:13

by Paul Burton

[permalink] [raw]
Subject: [PATCH 03/12] MIPS: Remove redundant asm/pgtable-bits.h inclusions

asm/pgtable-bits.h is included in 2 assembly files and thus has to
in either of the assembly files that include it.

Remove the redundant inclusions such that asm/pgtable-bits.h doesn't
need to #ifdef around C code, for cleanliness & and in preparation for
later patches which will add more C.

Signed-off-by: Paul Burton <[email protected]>
---

arch/mips/include/asm/pgtable-bits.h | 2 --
arch/mips/kernel/head.S | 1 -
arch/mips/kernel/r4k_switch.S | 1 -
3 files changed, 4 deletions(-)

diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h
index 97b3138..2f40312 100644
--- a/arch/mips/include/asm/pgtable-bits.h
+++ b/arch/mips/include/asm/pgtable-bits.h
@@ -191,7 +191,6 @@
*/


-#ifndef __ASSEMBLY__
/*
* pte_to_entrylo converts a page table entry (PTE) into a Mips
* entrylo0/1 value.
@@ -218,7 +217,6 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val)

return pte_val >> _PAGE_GLOBAL_SHIFT;
}
-#endif

/*
* Cache attributes
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 4e4cc5b..b8fb0ba 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -21,7 +21,6 @@
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/regdef.h>
-#include <asm/pgtable-bits.h>
#include <asm/mipsregs.h>
#include <asm/stackframe.h>

diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 92cd051..2f0a3b2 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -15,7 +15,6 @@
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
#include <asm/asm-offsets.h>
-#include <asm/pgtable-bits.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
#include <asm/thread_info.h>
--
2.8.0


2016-04-15 19:16:46

by James Hogan

[permalink] [raw]
Subject: Re: [PATCH 03/12] MIPS: Remove redundant asm/pgtable-bits.h inclusions

On Fri, Apr 15, 2016 at 11:36:51AM +0100, Paul Burton wrote:
> asm/pgtable-bits.h is included in 2 assembly files and thus has to
> in either of the assembly files that include it.

That could do with rewording :-)

Otherwise
Reviewed-by: James Hogan <[email protected]>

Cheers
James

>
> Remove the redundant inclusions such that asm/pgtable-bits.h doesn't
> need to #ifdef around C code, for cleanliness & and in preparation for
> later patches which will add more C.
>
> Signed-off-by: Paul Burton <[email protected]>
> ---
>
> arch/mips/include/asm/pgtable-bits.h | 2 --
> arch/mips/kernel/head.S | 1 -
> arch/mips/kernel/r4k_switch.S | 1 -
> 3 files changed, 4 deletions(-)
>
> diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h
> index 97b3138..2f40312 100644
> --- a/arch/mips/include/asm/pgtable-bits.h
> +++ b/arch/mips/include/asm/pgtable-bits.h
> @@ -191,7 +191,6 @@
> */
>
>
> -#ifndef __ASSEMBLY__
> /*
> * pte_to_entrylo converts a page table entry (PTE) into a Mips
> * entrylo0/1 value.
> @@ -218,7 +217,6 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val)
>
> return pte_val >> _PAGE_GLOBAL_SHIFT;
> }
> -#endif
>
> /*
> * Cache attributes
> diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
> index 4e4cc5b..b8fb0ba 100644
> --- a/arch/mips/kernel/head.S
> +++ b/arch/mips/kernel/head.S
> @@ -21,7 +21,6 @@
> #include <asm/asmmacro.h>
> #include <asm/irqflags.h>
> #include <asm/regdef.h>
> -#include <asm/pgtable-bits.h>
> #include <asm/mipsregs.h>
> #include <asm/stackframe.h>
>
> diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
> index 92cd051..2f0a3b2 100644
> --- a/arch/mips/kernel/r4k_switch.S
> +++ b/arch/mips/kernel/r4k_switch.S
> @@ -15,7 +15,6 @@
> #include <asm/fpregdef.h>
> #include <asm/mipsregs.h>
> #include <asm/asm-offsets.h>
> -#include <asm/pgtable-bits.h>
> #include <asm/regdef.h>
> #include <asm/stackframe.h>
> #include <asm/thread_info.h>
> --
> 2.8.0
>


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2016-04-15 21:19:47

by Paul Burton

[permalink] [raw]
Subject: Re: [PATCH 03/12] MIPS: Remove redundant asm/pgtable-bits.h inclusions

On Fri, Apr 15, 2016 at 08:16:40PM +0100, James Hogan wrote:
> On Fri, Apr 15, 2016 at 11:36:51AM +0100, Paul Burton wrote:
> > asm/pgtable-bits.h is included in 2 assembly files and thus has to
> > in either of the assembly files that include it.
>
> That could do with rewording :-)

Oops, it appears that I accidentally some words.

Originally there was an extra line in the middle so that it read
something like:

asm/pgtable-bits.h is included in 2 assembly files and thus has to
#ifdef around C code, however nothing defined by the header is used
in either of the assembly files that include it.

Ralf: Would you be ok with adding back that line to the commit message
if this gets merged without needing a v2?

> Otherwise
> Reviewed-by: James Hogan <[email protected]>

Thanks James :)

Paul