From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <nicolas.ferre@microchip.com>, <davem@davemloft.net>, <kuba@kernel.org>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH net-next 2/4] net: macb: use hweight_long() to count set bits in queue_mask
Date: Wed, 1 Jul 2020 16:08:49 +0300 [thread overview]
Message-ID: <1593608931-3718-3-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1593608931-3718-1-git-send-email-claudiu.beznea@microchip.com>
Use hweight_long() to count set bits in queue_mask.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/net/ethernet/cadence/macb_main.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 1bc2810f3dc4..a84fb0ec53f0 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3482,8 +3482,6 @@ static void macb_probe_queues(void __iomem *mem,
unsigned int *queue_mask,
unsigned int *num_queues)
{
- unsigned int hw_q;
-
*queue_mask = 0x1;
*num_queues = 1;
@@ -3498,10 +3496,7 @@ static void macb_probe_queues(void __iomem *mem,
/* bit 0 is never set but queue 0 always exists */
*queue_mask |= readl_relaxed(mem + GEM_DCFG6) & 0xff;
-
- for (hw_q = 1; hw_q < MACB_MAX_QUEUES; ++hw_q)
- if (*queue_mask & (1 << hw_q))
- (*num_queues)++;
+ *num_queues = hweight_long(*queue_mask);
}
static int macb_clk_init(struct platform_device *pdev, struct clk **pclk,
--
2.7.4
next prev parent reply other threads:[~2020-07-01 13:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 13:08 [PATCH net-next 0/4] net: macb: few code cleanups Claudiu Beznea
2020-07-01 13:08 ` [PATCH net-next 1/4] net: macb: do not set again bit 0 of queue_mask Claudiu Beznea
2020-07-01 13:08 ` Claudiu Beznea [this message]
2020-07-01 19:22 ` [PATCH net-next 2/4] net: macb: use hweight_long() to count set bits in queue_mask David Miller
2020-07-01 13:08 ` [PATCH net-next 3/4] net: macb: do not initialize queue variable Claudiu Beznea
2020-07-01 13:08 ` [PATCH net-next 4/4] net: macb: remove is_udp variable Claudiu Beznea
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