linux-kernel - [PATCH v2] phy: tegra: Remove self cast in tegra_xusb_port_find

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Date:   Sun, 1 Apr 2018 04:04:10 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Kishon Vijay Abraham I <kishon@...com>
Cc:     linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH v2] phy: tegra: Remove self cast in tegra_xusb_port_find_lane

Clang warns about casting variables to themselves because it is rarely
necessary. Removing the cast should not change anything regarding the
code and silences the warning.

../drivers/phy/tegra/xusb.c:421:11: warning: explicitly assigning value
of variable of type 'const struct tegra_xusb_lane_map *' to itself
[-Wself-assign]
        for (map = map; map->type; map++) {
             ~~~ ^ ~~~

Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
I am not entirely sure if this is the correct solution, especially since
I don't have the hardware and I am not too familiar with this code. If
there is a better solution, please let me know.

Changes from v1 -> v2: Fix spelling error in commit title

 drivers/phy/tegra/xusb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index 63e916d4d069..11aa5902a9ac 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -418,7 +418,7 @@ tegra_xusb_port_find_lane(struct tegra_xusb_port *port,
 {
 	struct tegra_xusb_lane *lane, *match = ERR_PTR(-ENODEV);
 
-	for (map = map; map->type; map++) {
+	for (; map->type; map++) {
 		if (port->index != map->port)
 			continue;
 
-- 
2.16.3