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powerpc: Fix endian issue in setup-common.c

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During on LE boot we see:

    Partition configured for 1073741824 cpus, operating system maximum is 2048.

Clearly missing a byteswap here.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2013-12-12 15:59:35 +11:00 committed by Benjamin Herrenschmidt
parent 36aa1b180e
commit 01666c8ee2
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kernel/setup-common.c
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@ -479,7 +479,7 @@ void __init smp_setup_cpu_maps(void)
if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
(dn = of_find_node_by_path("/rtas"))) {
int num_addr_cell, num_size_cell, maxcpus;
const unsigned int *ireg;
const __be32 *ireg;
num_addr_cell = of_n_addr_cells(dn);
num_size_cell = of_n_size_cells(dn);
@ -489,7 +489,7 @@ void __init smp_setup_cpu_maps(void)
if (!ireg)
goto out;
maxcpus = ireg[num_addr_cell + num_size_cell];
maxcpus = be32_to_cpup(ireg + num_addr_cell + num_size_cell);
/* Double maxcpus for processors which have SMT capability */
if (cpu_has_feature(CPU_FTR_SMT))