Merge branch 'merge'

5 files changed, 21 insertions, 4 deletions

diff --git a/arch/powerpc/kernel/cpu_setup_44x.S b/arch/powerpc/kernel/cpu_setup_44x.S
index 80cac984d85..31c18b52aff 100644
--- a/arch/powerpc/kernel/cpu_setup_44x.S
+++ b/arch/powerpc/kernel/cpu_setup_44x.S
@@ -34,7 +34,12 @@ _GLOBAL(__setup_cpu_440grx)
 	blr
 _GLOBAL(__setup_cpu_460ex)
 _GLOBAL(__setup_cpu_460gt)
-	b	__init_fpu_44x
+	mflr	r4
+	bl	__init_fpu_44x
+	bl	__fixup_440A_mcheck
+	mtlr	r4
+	blr
+
 _GLOBAL(__setup_cpu_440gx)
 _GLOBAL(__setup_cpu_440spe)
 	b	__fixup_440A_mcheck
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 1562daf8839..3a6eaa876ee 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -75,6 +75,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	for_each_sg(sgl, sg, nents, i) {
 		sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
 		sg->dma_length = sg->length;
+		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
 	}
 
 	return nents;
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index e6d52845854..e0bcf935428 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -57,12 +57,18 @@ system_call_common:
 	beq-	1f
 	ld	r1,PACAKSAVE(r13)
 1:	std	r10,0(r1)
-	crclr	so
 	std	r11,_NIP(r1)
 	std	r12,_MSR(r1)
 	std	r0,GPR0(r1)
 	std	r10,GPR1(r1)
 	ACCOUNT_CPU_USER_ENTRY(r10, r11)
+	/*
+	 * This "crclr so" clears CR0.SO, which is the error indication on
+	 * return from this system call.  There must be no cmp instruction
+	 * between it and the "mfcr r9" below, otherwise if XER.SO is set,
+	 * CR0.SO will get set, causing all system calls to appear to fail.
+	 */
+	crclr	so
 	std	r2,GPR2(r1)
 	std	r3,GPR3(r1)
 	std	r4,GPR4(r1)
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 2a1c02c5696..8c133556608 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -250,8 +250,11 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 	 * parsing
 	 */
 	dn = pci_device_to_OF_node(pdev);
-	if (dn)
-		return of_irq_map_one(dn, 0, out_irq);
+	if (dn) {
+		rc = of_irq_map_one(dn, 0, out_irq);
+		if (!rc)
+			return rc;
+	}
 
 	/* Ok, we don't, time to have fun. Let's start by building up an
 	 * interrupt spec.  we assume #interrupt-cells is 1, which is standard
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 86a2ffccef2..20885a38237 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -717,9 +717,11 @@ static void unregister_cpu_online(unsigned int cpu)
 
 	BUG_ON(!c->hotpluggable);
 
+#ifdef CONFIG_PPC64
 	if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
 			cpu_has_feature(CPU_FTR_SMT))
 		sysdev_remove_file(s, &attr_smt_snooze_delay);
+#endif
 
 	/* PMC stuff */
 	switch (cur_cpu_spec->pmc_type) {