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authorDavid S. Miller <davem@sunset.davemloft.net>2007-03-15 00:06:34 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 01:55:23 -0700
commit0015d3d68c84eb33e6b380802ad61b23f7eb6523 (patch)
treed3e7b31dc8a3a34c3625abb0e52de733829e995b /arch/sparc64/mm
parentd78d0891d3dd976a2fb707c6c691d9cd5ed60727 (diff)
[SPARC64]: Simplify read_obp_memory().
Kick out empty entries as soon as we spot them, and use memmove() instead of a silly loop to make the operation more clear. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/mm')
-rw-r--r--arch/sparc64/mm/init.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index f146071a4b2..973c4e122f2 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -122,24 +122,19 @@ static void __init read_obp_memory(const char *property,
size = 0UL;
base = new_base;
}
- regs[i].phys_addr = base;
- regs[i].reg_size = size;
- }
-
- for (i = 0; i < ents; i++) {
- if (regs[i].reg_size == 0UL) {
- int j;
-
- for (j = i; j < ents - 1; j++) {
- regs[j].phys_addr =
- regs[j+1].phys_addr;
- regs[j].reg_size =
- regs[j+1].reg_size;
- }
-
- ents--;
+ if (size == 0UL) {
+ /* If it is empty, simply get rid of it.
+ * This simplifies the logic of the other
+ * functions that process these arrays.
+ */
+ memmove(&regs[i], &regs[i + 1],
+ (ents - i - 1) * sizeof(regs[0]));
i--;
+ ents--;
+ continue;
}
+ regs[i].phys_addr = base;
+ regs[i].reg_size = size;
}
*num_ents = ents;