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From: Stephen Boyd <swboyd@chromium.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Maulik Shah <mkshah@codeaurora.org>,
	Douglas Anderson <dianders@chromium.org>
Subject: [PATCH 3/3] soc: qcom: rpmh-rsc: Fold WARN_ON() into if condition
Date: Thu, 23 Apr 2020 21:54:14 -0700	[thread overview]
Message-ID: <20200424045414.133381-4-swboyd@chromium.org> (raw)
In-Reply-To: <20200424045414.133381-1-swboyd@chromium.org>

Move the WARN_ON() into the if condition so the compiler can see that
the branch is unlikely() and possibly optimize it better.

Cc: Maulik Shah <mkshah@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/soc/qcom/rpmh-rsc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 462dd267afef..f7763f008e03 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -373,10 +373,8 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
 
 	for_each_set_bit(i, &irq_status, BITS_PER_TYPE(u32)) {
 		req = get_req_from_tcs(drv, i);
-		if (!req) {
-			WARN_ON(1);
+		if (WARN_ON(!req))
 			goto skip;
-		}
 
 		err = 0;
 		for (j = 0; j < req->num_cmds; j++) {
-- 
Sent by a computer, using git, on the internet


  parent reply	other threads:[~2020-04-24  4:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-24  4:54 [PATCH 0/3] Even moar rpmh cleanups Stephen Boyd
2020-04-24  4:54 ` [PATCH 1/3] soc: qcom: rpmh-rsc: Remove tcs_is_free() API Stephen Boyd
2020-04-24  5:36   ` Bjorn Andersson
2020-04-24 17:21     ` Stephen Boyd
2020-04-24 17:12   ` Doug Anderson
2020-04-24 17:28     ` Stephen Boyd
2020-04-24  4:54 ` [PATCH 2/3] soc: qcom: rpmh-rsc: Loop over less bits in irq handler Stephen Boyd
2020-04-24  5:37   ` Bjorn Andersson
2020-04-24 17:11   ` Doug Anderson
2020-04-24 17:13     ` Doug Anderson
2020-04-24 17:27       ` Stephen Boyd
2020-04-24  4:54 ` Stephen Boyd [this message]
2020-04-24  5:37   ` [PATCH 3/3] soc: qcom: rpmh-rsc: Fold WARN_ON() into if condition Bjorn Andersson
2020-04-24 17:11   ` Doug Anderson

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