linux-kernel - [PATCH v1 2/6] rqchip/gic-v3-its: use temporary va / pa variables

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Message-Id: <20190826190056.27854-3-pasha.tatashin@soleen.com>
Date:   Mon, 26 Aug 2019 15:00:52 -0400
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     pasha.tatashin@...een.com, jmorris@...ei.org, sashal@...nel.org,
        kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, marc.zyngier@....com,
        james.morse@....com, vladimir.murzin@....com, mark.rutland@....com
Subject: [PATCH v1 2/6] rqchip/gic-v3-its: use temporary va / pa variables

This is a cleanup, that will help later when a variant that does not
require memremap is added.

Signed-off-by: Pavel Tatashin <pasha.tatashin@...een.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index ada18748ed1c..656b6c6e1bf8 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1668,15 +1668,17 @@ static int gic_reserve_range(phys_addr_t addr, unsigned long size)
 static int __init its_setup_lpi_prop_table(void)
 {
 	if (gic_rdists->flags & RDIST_FLAGS_RD_TABLES_PREALLOCATED) {
+		unsigned long pa;
 		u64 val;
+		void *va;
 
 		val = gicr_read_propbaser(gic_data_rdist_rd_base() + GICR_PROPBASER);
 		lpi_id_bits = (val & GICR_PROPBASER_IDBITS_MASK) + 1;
 
-		gic_rdists->prop_table_pa = val & GENMASK_ULL(51, 12);
-		gic_rdists->prop_table_va = memremap(gic_rdists->prop_table_pa,
-						     LPI_PROPBASE_SZ,
-						     MEMREMAP_WB);
+		pa = val & GENMASK_ULL(51, 12);
+		va = memremap(pa, LPI_PROPBASE_SZ, MEMREMAP_WB);
+		gic_rdists->prop_table_pa = pa;
+		gic_rdists->prop_table_va = va;
 	} else {
 		struct page *page;
 
-- 
2.23.0