[Xen-devel] [PATCH 01/11] of: address: clean-up unused variable in of_dma_get_range()

[Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>]

'len' in of_dma_get_range() is used to check the 'dma-ranges' property
length. After the fact, some calculations are run on the variable to be
then left unused.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
---

 drivers/of/address.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/of/address.c b/drivers/of/address.c
index 978427a9d5e6..0f898756199d 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -922,7 +922,7 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, 
u64 *paddr, u64 *siz
 {
        struct device_node *node = of_node_get(np);
        const __be32 *ranges = NULL;
-       int len, naddr, nsize, pna;
+       int naddr, nsize, pna;
        int ret = 0;
        u64 dmaaddr;
 
@@ -931,6 +931,7 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, 
u64 *paddr, u64 *siz
 
        while (1) {
                struct device_node *parent;
+               int len;
 
                naddr = of_n_addr_cells(node);
                nsize = of_n_size_cells(node);
@@ -962,8 +963,6 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, 
u64 *paddr, u64 *siz
                goto out;
        }
 
-       len /= sizeof(u32);
-
        pna = of_n_addr_cells(node);
 
        /* dma-ranges format:
-- 
2.23.0


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