x86/apm_32: Remove dead function apm_get_battery_status()

This part was commented out 25 years ago in:

  commit d43c43b46ebfdb437b78206fcc1992c4d2e8c15e
  Author: linus1 <torvalds@linuxfoundation.org>
  Date:   Tue Sep 7 11:00:00 1999 -0600

      Import 2.3.26pre1

and probably no one knows why. Probably it was unused even then.

Just remove it.

  [ bp: Expand commit message. ]

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240126030824.579711-1-chentao@kylinos.cn

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 76a5ced278c2aef9f28e29c237e9b27557a14e63..b37ab10957074fb60211db3ec21cf63a69b59609 100644 (file)
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1055,35 +1055,6 @@ static int apm_get_power_status(u_short *status, u_short *bat, u_short *life)
        return APM_SUCCESS;
 }
 
-#if 0
-static int apm_get_battery_status(u_short which, u_short *status,
-                                 u_short *bat, u_short *life, u_short *nbat)
-{
-       u32 eax;
-       u32 ebx;
-       u32 ecx;
-       u32 edx;
-       u32 esi;
-
-       if (apm_info.connection_version < 0x0102) {
-               /* pretend we only have one battery. */
-               if (which != 1)
-                       return APM_BAD_DEVICE;
-               *nbat = 1;
-               return apm_get_power_status(status, bat, life);
-       }
-
-       if (apm_bios_call(APM_FUNC_GET_STATUS, (0x8000 | (which)), 0, &eax,
-                         &ebx, &ecx, &edx, &esi))
-               return (eax >> 8) & 0xff;
-       *status = ebx;
-       *bat = ecx;
-       *life = edx;
-       *nbat = esi;
-       return APM_SUCCESS;
-}
-#endif
-
 /**
  *     apm_engage_power_management     -       enable PM on a device
  *     @device: identity of device