Re: Compile problem on sparc64

[David S. Miller]

[ Please us sparclinux@xxxxxxxxxxxxxxx in the future, thanks... ]

On Wed, 24 Mar 2004 13:15:22 +0100
Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote:

> I am using Debian Sid with GCC 3.3.3 (Debian 20040320) and I got the
> following error on my sparc64 platform while compiling the latest
> Bitkeeper sources from 2.6:

This should cure it, let me know if it doesn't.

# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
#   2004/03/24 12:16:41-08:00 davem@xxxxxxxxxxxxxxxxxx 
#   [SPARC64]: Do not use cast exprs as lvalues.
# 
# include/asm-sparc64/pgalloc.h
#   2004/03/24 12:16:19-08:00 davem@xxxxxxxxxxxxxxxxxx +7 -6
#   [SPARC64]: Do not use cast exprs as lvalues.
# 
diff -Nru a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h
--- a/include/asm-sparc64/pgalloc.h	Wed Mar 24 12:17:02 2004
+++ b/include/asm-sparc64/pgalloc.h	Wed Mar 24 12:17:02 2004
@@ -38,11 +38,12 @@
 
 	preempt_disable();
 	if (!page->lru.prev) {
-		(unsigned long *)page->lru.next = pgd_quicklist;
+		page->lru.next = (void *) pgd_quicklist;
 		pgd_quicklist = (unsigned long *)page;
 	}
-	(unsigned long)page->lru.prev |=
-		(((unsigned long)pgd & (PAGE_SIZE / 2)) ? 2 : 1);
+	page->lru.prev = (void *)
+	  (((unsigned long)page->lru.prev) |
+	   (((unsigned long)pgd & (PAGE_SIZE / 2)) ? 2 : 1));
 	pgd_cache_size++;
 	preempt_enable();
 }
@@ -62,7 +63,7 @@
 			off = PAGE_SIZE / 2;
 			mask &= ~2;
 		}
-		(unsigned long)ret->lru.prev = mask;
+		ret->lru.prev = (void *) mask;
 		if (!mask)
 			pgd_quicklist = (unsigned long *)ret->lru.next;
                 ret = (struct page *)(__page_address(ret) + off);
@@ -76,10 +77,10 @@
 		if (page) {
 			ret = (struct page *)page_address(page);
 			clear_page(ret);
-			(unsigned long)page->lru.prev = 2;
+			page->lru.prev = (void *) 2UL;
 
 			preempt_disable();
-			(unsigned long *)page->lru.next = pgd_quicklist;
+			page->lru.next = (void *) pgd_quicklist;
 			pgd_quicklist = (unsigned long *)page;
 			pgd_cache_size++;
 			preempt_enable();
-
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