linux-kernel - Re: linux-next: build failure after merge of the final tree (akpm tree related)

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Message-Id: <20121114150919.19c1633a.akpm@linux-foundation.org>
Date:	Wed, 14 Nov 2012 15:09:19 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Miller <davem@...emloft.net>
Cc:	sfr@...b.auug.org.au, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, walken@...gle.com, riel@...hat.com
Subject: Re: linux-next: build failure after merge of the final tree (akpm
 tree related)

On Wed, 14 Nov 2012 17:30:59 -0500 (EST)
David Miller <davem@...emloft.net> wrote:

> From: Andrew Morton <akpm@...ux-foundation.org>
> Date: Wed, 14 Nov 2012 14:18:47 -0800
> 
> > s/colour/color/
> 
> The whole file uses the COLOUR spelling in it's macros, for
> consistency I see no reason not to use the same spelling
> for local variables.
> 
> Else, fix the whole file instead of leaving an inconsistent
> mess around.

Sure, but which way do you want it?

Current mainline:

akpm:/usr/src/linux-3.7-rc5> grep -i colour arch/sparc/kernel/*.c arch/sparc/mm/*.c
arch/sparc/kernel/sys_sparc_32.c:#define COLOUR_ALIGN(addr)      (((addr)+SHMLBA-1)&~(SHMLBA-1))
arch/sparc/kernel/sys_sparc_32.c:               addr = COLOUR_ALIGN(addr);
arch/sparc/kernel/sys_sparc_32.c:                       addr = COLOUR_ALIGN(addr);
arch/sparc/kernel/sys_sparc_64.c:static inline unsigned long COLOUR_ALIGN(unsigned long addr,
arch/sparc/kernel/sys_sparc_64.c:static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr,
arch/sparc/kernel/sys_sparc_64.c:                       addr = COLOUR_ALIGN(addr, pgoff);
arch/sparc/kernel/sys_sparc_64.c:               addr = COLOUR_ALIGN(addr, pgoff);
arch/sparc/kernel/sys_sparc_64.c:                       addr = COLOUR_ALIGN(addr, pgoff);
arch/sparc/kernel/sys_sparc_64.c:                       addr = COLOUR_ALIGN(addr, pgoff);
arch/sparc/kernel/sys_sparc_64.c:               unsigned long base = COLOUR_ALIGN_DOWN(addr-len, pgoff);
arch/sparc/kernel/sys_sparc_64.c:               addr = COLOUR_ALIGN_DOWN(addr, pgoff);
arch/sparc/kernel/sys_sparc_64.c:                       addr = COLOUR_ALIGN_DOWN(addr, pgoff);


arch/sparc/kernel/sys_sparc_64.c: * 1) For file backed MAP_SHARED mmap()'s we D-cache color align,
arch/sparc/kernel/sys_sparc_64.c:	int do_color_align;
arch/sparc/kernel/sys_sparc_64.c:	do_color_align = 0;
arch/sparc/kernel/sys_sparc_64.c:		do_color_align = 1;
arch/sparc/kernel/sys_sparc_64.c:		if (do_color_align)
arch/sparc/kernel/sys_sparc_64.c:	if (do_color_align)
arch/sparc/kernel/sys_sparc_64.c:		if (do_color_align)
arch/sparc/kernel/sys_sparc_64.c:	int do_color_align;
arch/sparc/kernel/sys_sparc_64.c:	do_color_align = 0;
arch/sparc/kernel/sys_sparc_64.c:		do_color_align = 1;
arch/sparc/kernel/sys_sparc_64.c:		if (do_color_align)
arch/sparc/kernel/sys_sparc_64.c:	if (do_color_align) {
arch/sparc/kernel/sys_sparc_64.c:	if (do_color_align)
arch/sparc/kernel/sys_sparc_64.c:		if (do_color_align)
arch/sparc/mm/hugetlbpage.c: * definition we don't have to worry about any page coloring stuff
arch/sparc/mm/iommu.c:	/* To be coherent on HyperSparc, the page color of DVMA
arch/sparc/mm/iommu.c:		iommu->usemap.num_colors = vac_cache_size >> PAGE_SHIFT;
arch/sparc/mm/iommu.c:		iommu->usemap.num_colors = 1;
arch/sparc/mm/iommu.c:	/* page color = pfn of page */
arch/sparc/mm/iommu.c:	/* page color = physical address */


I suspect that most people expect "color".  And given that this
patchset removes COLOUR_ALIGN_DOWN (and should have removed
arch/sparc/kernel/sys_sparc_32.c:COLOR_ALIGN), we end up with

--- a/arch/sparc/kernel/sys_sparc_64.c~a
+++ a/arch/sparc/kernel/sys_sparc_64.c
@@ -75,7 +75,7 @@ static inline int invalid_64bit_range(un
  *    the spitfire/niagara VA-hole.
  */
 
-static inline unsigned long COLOUR_ALIGN(unsigned long addr,
+static inline unsigned long COLOR_ALIGN(unsigned long addr,
 					 unsigned long pgoff)
 {
 	unsigned long base = (addr+SHMLBA-1)&~(SHMLBA-1);
@@ -113,7 +113,7 @@ unsigned long arch_get_unmapped_area(str
 
 	if (addr) {
 		if (do_color_align)
-			addr = COLOUR_ALIGN(addr, pgoff);
+			addr = COLOR_ALIGN(addr, pgoff);
 		else
 			addr = PAGE_ALIGN(addr);
 
@@ -176,7 +176,7 @@ arch_get_unmapped_area_topdown(struct fi
 	/* requesting a specific address */
 	if (addr) {
 		if (do_color_align)
-			addr = COLOUR_ALIGN(addr, pgoff);
+			addr = COLOR_ALIGN(addr, pgoff);
 		else
 			addr = PAGE_ALIGN(addr);
 
_

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