[PATCH 1/3] PCI: meson: Remove cast between incompatible function type
Krzysztof Wilczyński
kwilczynski at kernel.org
Thu Jun 29 09:59:54 PDT 2023
Rather than casting void(*)(struct clk *) to void (*)(void *), that
forces conversion to an incompatible function type, replace the cast
with a small local stub function with a signature that matches what
the devm_add_action_or_reset() function expects.
The sub function takes a void *, then passes it directly to
clk_disable_unprepare(), which handles the more specific type.
Reported by clang when building with warnings enabled:
drivers/pci/controller/dwc/pci-meson.c:191:6: warning: cast from 'void (*)(struct clk *)' to 'void (*)(void *)' converts to incompatible function type [-Wcast-function-type-strict]
(void (*) (void *))clk_disable_unprepare,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
No functional changes are intended.
Fixes: 9c0ef6d34fdb ("PCI: amlogic: Add the Amlogic Meson PCIe controller driver")
Signed-off-by: Krzysztof Wilczyński <kwilczynski at kernel.org>
---
drivers/pci/controller/dwc/pci-meson.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
index c1527693bed9..34990a6363d0 100644
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -163,6 +163,13 @@ static int meson_pcie_reset(struct meson_pcie *mp)
return 0;
}
+static inline void meson_pcie_disable_clock(void *data)
+{
+ struct clk *clk = data;
+
+ clk_disable_unprepare(clk);
+}
+
static inline struct clk *meson_pcie_probe_clock(struct device *dev,
const char *id, u64 rate)
{
@@ -187,9 +194,7 @@ static inline struct clk *meson_pcie_probe_clock(struct device *dev,
return ERR_PTR(ret);
}
- devm_add_action_or_reset(dev,
- (void (*) (void *))clk_disable_unprepare,
- clk);
+ devm_add_action_or_reset(dev, meson_pcie_disable_clock, clk);
return clk;
}
--
2.41.0
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