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os-support/solaris: Drop ExtendedEnabled global variable

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Keeping track of kernel state in user space doesn't buy us anything,
and introduces bugs, as we were keeping global state but the Solaris
kernel tracks IOPL per thread.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
(cherry picked from commit 7533fa9bd5)
This commit is contained in:
Alan Coopersmith 2019-02-21 14:51:22 -08:00 • committed by Matt Turner
parent 977f3acfce
commit bb405cdc85
1 changed files with 0 additions and 13 deletions
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13
hw/xfree86/os-support/solaris/sun_vid.c
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@ -73,22 +73,14 @@ xf86OSInitVidMem(VidMemInfoPtr pVidMem)
/* I/O Permissions section */
/***************************************************************************/
#if defined(__i386__) || defined(__i386) || defined(__x86)
static Bool ExtendedEnabled = FALSE;
#endif
Bool
xf86EnableIO(void)
{
#if defined(__i386__) || defined(__i386) || defined(__x86)
if (ExtendedEnabled)
return TRUE;
if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) {
xf86Msg(X_WARNING, "xf86EnableIOPorts: Failed to set IOPL for I/O\n");
return FALSE;
}
ExtendedEnabled = TRUE;
#endif /* i386 */
return TRUE;
}
@ -97,11 +89,6 @@ void
xf86DisableIO(void)
{
#if defined(__i386__) || defined(__i386) || defined(__x86)
if (!ExtendedEnabled)
return;
sysi86(SI86V86, V86SC_IOPL, 0);
ExtendedEnabled = FALSE;
#endif /* i386 */
}