linux-kernel - [PATCH v3 2/3] soc: qcom: rpmh-rsc: Loop over fewer bits in irq handler

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Message-Id: <20200521012119.238270-3-swboyd@chromium.org>
Date:   Wed, 20 May 2020 18:21:18 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linux-kernel@...r.kernel.org, Maulik Shah <mkshah@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: [PATCH v3 2/3] soc: qcom: rpmh-rsc: Loop over fewer bits in irq handler

readl() returns a u32, and BITS_PER_LONG is different on 32-bit vs.
64-bit architectures. Let's loop over the possible bits set in that type
instead of looping over more bits than we ever may need to.

Cc: Maulik Shah <mkshah@...eaurora.org>
Reviewed-by: Douglas Anderson <dianders@...omium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
 drivers/soc/qcom/rpmh-rsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 60fc56987659..ce725d4ff097 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -383,7 +383,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
 
 	irq_status = readl_relaxed(drv->tcs_base + RSC_DRV_IRQ_STATUS);
 
-	for_each_set_bit(i, &irq_status, BITS_PER_LONG) {
+	for_each_set_bit(i, &irq_status, BITS_PER_TYPE(u32)) {
 		req = get_req_from_tcs(drv, i);
 		if (!req) {
 			WARN_ON(1);
-- 
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