linux-kernel - [PATCH v3 3/3] soc: qcom: rpmh-rsc: Fold WARN

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200521012119.238270-4-swboyd@chromium.org>
Date:   Wed, 20 May 2020 18:21:19 -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 3/3] soc: qcom: rpmh-rsc: Fold WARN_ON() into if condition

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@...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 | 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 ce725d4ff097..8381bd012de4 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -385,10 +385,8 @@ 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