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8d8c313124
Nesting container_of() causes warnings with W=2, which is
annoying if it happens in headers and fills the build log
like:
In file included from drivers/clk/qcom/clk-alpha-pll.c:6:
drivers/clk/qcom/clk-alpha-pll.c: In function 'clk_alpha_pll_hwfsm_enable':
include/linux/kernel.h:852:8: warning: declaration of '__mptr' shadows a previous local [-Wshadow]
852 | void *__mptr = (void *)(ptr); \
| ^~~~~~
drivers/clk/qcom/clk-alpha-pll.c:155:31: note: in expansion of macro 'container_of'
155 | #define to_clk_alpha_pll(_hw) container_of(to_clk_regmap(_hw), \
| ^~~~~~~~~~~~
drivers/clk/qcom/clk-regmap.h:27:28: note: in expansion of macro 'container_of'
27 | #define to_clk_regmap(_hw) container_of(_hw, struct clk_regmap, hw)
| ^~~~~~~~~~~~
drivers/clk/qcom/clk-alpha-pll.c:155:44: note: in expansion of macro 'to_clk_regmap'
155 | #define to_clk_alpha_pll(_hw) container_of(to_clk_regmap(_hw), \
| ^~~~~~~~~~~~~
drivers/clk/qcom/clk-alpha-pll.c:254:30: note: in expansion of macro 'to_clk_alpha_pll'
254 | struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:852:8: note: shadowed declaration is here
852 | void *__mptr = (void *)(ptr); \
| ^~~~~~
Redefine two copies of the to_clk_regmap() macro as inline functions
to avoid a lot of these.
Fixes: ea11dda9e0 ("clk: meson: add regmap clocks")
Fixes: 085d7a4554 ("clk: qcom: Add a regmap type clock struct")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201026161411.3708639-1-arnd@kernel.org
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2014, The Linux Foundation. All rights reserved. */
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#ifndef __QCOM_CLK_REGMAP_H__
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#define __QCOM_CLK_REGMAP_H__
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#include <linux/clk-provider.h>
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struct regmap;
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/**
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* struct clk_regmap - regmap supporting clock
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* @hw: handle between common and hardware-specific interfaces
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* @regmap: regmap to use for regmap helpers and/or by providers
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* @enable_reg: register when using regmap enable/disable ops
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* @enable_mask: mask when using regmap enable/disable ops
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* @enable_is_inverted: flag to indicate set enable_mask bits to disable
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* when using clock_enable_regmap and friends APIs.
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*/
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struct clk_regmap {
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struct clk_hw hw;
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struct regmap *regmap;
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unsigned int enable_reg;
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unsigned int enable_mask;
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bool enable_is_inverted;
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};
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static inline struct clk_regmap *to_clk_regmap(struct clk_hw *hw)
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{
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return container_of(hw, struct clk_regmap, hw);
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}
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int clk_is_enabled_regmap(struct clk_hw *hw);
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int clk_enable_regmap(struct clk_hw *hw);
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void clk_disable_regmap(struct clk_hw *hw);
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int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk);
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#endif
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