[PATCH] clk: imx6q: Annotate imx6q_obtain_fixed_clk_hw with __init

From: Nathan Chancellor
Date: Mon Jun 17 2019 - 22:29:16 EST

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
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

Fixes: 992b703b5b38 ("clk: imx6q: Switch to clk_hw based API")
Link: https://github.com/ClangBuiltLinux/linux/issues/541
Reported-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
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;