Re: [PATCH 1/2] ACPI / LPSS: Call lpss_iosf_exit_d3_state on device activate

[kbuild test robot <lkp@intel.com>]

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Hi Hans,

[auto build test WARNING on pm/linux-next]
[also build test WARNING on v4.12-rc7 next-20170628]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Hans-de-Goede/ACPI-LPSS-Call-lpss_iosf_exit_d3_state-on-device-activate/20170628-072414
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: x86_64-randconfig-b0-06282134 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/acpi/acpi_lpss.c:96: warning: 'lpss_iosf_exit_d3_state' declared 'static' but never defined

vim +96 drivers/acpi/acpi_lpss.c

    80		void (*setup)(struct lpss_private_data *pdata);
    81	};
    82	
    83	static const struct lpss_device_desc lpss_dma_desc = {
    84		.flags = LPSS_CLK,
    85	};
    86	
    87	struct lpss_private_data {
    88		void __iomem *mmio_base;
    89		resource_size_t mmio_size;
    90		unsigned int fixed_clk_rate;
    91		struct clk *clk;
    92		const struct lpss_device_desc *dev_desc;
    93		u32 prv_reg_ctx[LPSS_PRV_REG_COUNT];
    94	};
    95	
  > 96	static void lpss_iosf_exit_d3_state(void);
    97	
    98	/* LPSS run time quirks */
    99	static unsigned int lpss_quirks;
   100	
   101	/*
   102	 * LPSS_QUIRK_ALWAYS_POWER_ON: override power state for LPSS DMA device.
   103	 *
   104	 * The LPSS DMA controller has neither _PS0 nor _PS3 method. Moreover

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