linux-kernel - [PATCH] clk: imx6q: Annotate imx6q_obtain_fixed_clk_hw with _

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-next>] [day] [month] [year] [list]

Message-Id: <20190618022405.27952-1-natechancellor@gmail.com>
Date:   Mon, 17 Jun 2019 19:24:05 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Abel Vesa <abel.vesa@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>
Cc:     Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
        Nathan Chancellor <natechancellor@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH] clk: imx6q: Annotate imx6q_obtain_fixed_clk_hw with __init

When building with clang, the following modpost warning occurs:

WARNING: vmlinux.o(.text+0x974dbc): Section mismatch in reference from
the function imx6q_obtain_fixed_clk_hw() to the function
.init.text:imx_obtain_fixed_clock_hw()
The function imx6q_obtain_fixed_clk_hw() references
the function __init imx_obtain_fixed_clock_hw().
This is often because imx6q_obtain_fixed_clk_hw lacks a __init
annotation or the annotation of imx_obtain_fixed_clock_hw is wrong.

imx6q_obtain_fixed_clk_hw is only used in imx6q_clocks_init, which is
marked __init so do that to imx6q_obtain_fixed_clk_hw to avoid this
warning.

Fixes: 992b703b5b38 ("clk: imx6q: Switch to clk_hw based API")
Link: https://github.com/ClangBuiltLinux/linux/issues/541
Reported-by: Nick Desaulniers <ndesaulniers@...gle.com>
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
 drivers/clk/imx/clk-imx6q.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index 2caa71e91119..18914e0a1850 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -418,8 +418,9 @@ static void disable_anatop_clocks(void __iomem *anatop_base)
 	writel_relaxed(reg, anatop_base + CCM_ANALOG_PLL_VIDEO);
 }
 
-static struct clk_hw *imx6q_obtain_fixed_clk_hw(struct device_node *np,
-						const char *name, unsigned long rate)
+static struct clk_hw __init *imx6q_obtain_fixed_clk_hw(struct device_node *np,
+							const char *name,
+							unsigned long rate)
 {
 	struct clk *clk = of_clk_get_by_name(np, name);
 	struct clk_hw *hw;
-- 
2.22.0