diff options
| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/clk/clk.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/clk/clk.h')
| -rw-r--r-- | drivers/clk/clk.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/clk/clk.h b/drivers/clk/clk.h new file mode 100644 index 000000000..2d801900c --- /dev/null +++ b/drivers/clk/clk.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Sylwester Nawrocki <s.nawrocki@samsung.com> + */ + +struct clk_hw; +struct device; +struct of_phandle_args; + +#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) +struct clk_hw *of_clk_get_hw(struct device_node *np, + int index, const char *con_id); +#else /* !CONFIG_COMMON_CLK || !CONFIG_OF */ +static inline struct clk_hw *of_clk_get_hw(struct device_node *np, + int index, const char *con_id) +{ + return ERR_PTR(-ENOENT); +} +#endif + +struct clk_hw *clk_find_hw(const char *dev_id, const char *con_id); + +#ifdef CONFIG_COMMON_CLK +struct clk *clk_hw_create_clk(struct device *dev, struct clk_hw *hw, + const char *dev_id, const char *con_id); +void __clk_put(struct clk *clk); +#else +/* All these casts to avoid ifdefs in clkdev... */ +static inline struct clk * +clk_hw_create_clk(struct device *dev, struct clk_hw *hw, const char *dev_id, + const char *con_id) +{ + return (struct clk *)hw; +} +static inline void __clk_put(struct clk *clk) { } + +#endif |