package/kernel/mac80211/patches/300-v4.15-ath10k-fix-build-errors-with-CONFIG_PM.patch

   1 From: Brian Norris <briannorris@chromium.org>
   2 Date: Thu, 19 Oct 2017 11:45:19 -0700
   3 Subject: [PATCH] ath10k: fix build errors with !CONFIG_PM
   4
   5 Build errors have been reported with CONFIG_PM=n:
   6
   7 drivers/net/wireless/ath/ath10k/pci.c:3416:8: error: implicit
   8 declaration of function 'ath10k_pci_suspend'
   9 [-Werror=implicit-function-declaration]
  10
  11 drivers/net/wireless/ath/ath10k/pci.c:3428:8: error: implicit
  12 declaration of function 'ath10k_pci_resume'
  13 [-Werror=implicit-function-declaration]
  14
  15 These are caused by the combination of the following two commits:
  16
  17 6af1de2e4ec4 ("ath10k: mark PM functions as __maybe_unused")
  18 96378bd2c6cd ("ath10k: fix core PCI suspend when WoWLAN is supported but
  19 disabled")
  20
  21 Both build fine on their own.
  22
  23 But now that ath10k_pci_pm_{suspend,resume}() is compiled
  24 unconditionally, we should also compile ath10k_pci_{suspend,resume}()
  25 unconditionally.
  26
  27 And drop the #ifdef around ath10k_pci_hif_{suspend,resume}() too; they
  28 are trivial (empty), so we're not saving much space by compiling them
  29 out. And the alternatives would be to sprinkle more __maybe_unused, or
  30 spread the #ifdef's further.
  31
  32 Build tested with the following combinations:
  33 CONFIG_PM=y && CONFIG_PM_SLEEP=y
  34 CONFIG_PM=y && CONFIG_PM_SLEEP=n
  35 CONFIG_PM=n
  36
  37 Fixes: 96378bd2c6cd ("ath10k: fix core PCI suspend when WoWLAN is supported but disabled")
  38 Fixes: 096ad2a15fd8 ("Merge branch 'ath-next'")
  39 Signed-off-by: Brian Norris <briannorris@chromium.org>
  40 Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
  41 ---
  42
  43 --- a/drivers/net/wireless/ath/ath10k/pci.c
  44 +++ b/drivers/net/wireless/ath/ath10k/pci.c
  45 @@ -2577,8 +2577,6 @@ void ath10k_pci_hif_power_down(struct at
  46          */
  47  }
  48
  49 -#ifdef CONFIG_PM
  50 -
  51  static int ath10k_pci_hif_suspend(struct ath10k *ar)
  52  {
  53         /* Nothing to do; the important stuff is in the driver suspend. */
  54 @@ -2627,7 +2625,6 @@ static int ath10k_pci_resume(struct ath1
  55
  56         return ret;
  57  }
  58 -#endif
  59
  60  static bool ath10k_pci_validate_cal(void *data, size_t size)
  61  {
  62 @@ -2782,10 +2779,8 @@ static const struct ath10k_hif_ops ath10
  63         .power_down             = ath10k_pci_hif_power_down,
  64         .read32                 = ath10k_pci_read32,
  65         .write32                = ath10k_pci_write32,
  66 -#ifdef CONFIG_PM
  67         .suspend                = ath10k_pci_hif_suspend,
  68         .resume                 = ath10k_pci_hif_resume,
  69 -#endif
  70         .fetch_cal_eeprom       = ath10k_pci_hif_fetch_cal_eeprom,
  71  };
  72