powerpc: Fix endian issue in setup-common.c

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>

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index febc80445d25850acf2578943c60357d8436b1c2..bc76cc6b419c2a8d0b5491637afadfe046278142 100644 (file)
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -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))