date: 2005/12/13 15:32:52;  author: delphij;  state: Exp;  lines: +5 -5
In Linux, kernel parameters passed to ioctl are by value, while in FreeBSD
they are passed by reference.  Handle the difference within the
linux_ioctl_termio on the LINUX_TCFLSH path.

Submitted by:   Jaroslav Drzik <jaro_AT_coop-voz_dot_sk>
Reminded by:	glebius

  Rewrite linux_ifconf() to be more like ifconf() in net/if.c
  so that we do not call uiomove() while IFNET_RLOCK() is held.
  This eliminates the witness warning:

  Calling uiomove() with the following non-sleepable locks held:
  exclusive sleep mutex ifnet r = 0 (0xc096dd60) locked @
  /usr/src/sys/modules/linux/../../compat/linux/linux_ioctl.c:2170

Approved by:	re (scottl)

if_pflog.c:1.14 if_pfsync.c:1.21 if_an.c:1.70 if_ar.c:1.72 if_arl.c:1.11
amrr.c:1.10 onoe.c:1.10 if_ath.c:1.101 awi.c:1.41 if_bfe.c:1.27
if_bge.c:1.93 if_cm_isa.c:1.7 smc90cx6.c:1.16 if_cnw.c:1.20 if_cp.c:1.25
if_cs.c:1.42 if_ct.c:1.26 if_cx.c:1.46 if_ed.c:1.256 if_em.c:1.68
if_en_pci.c:1.37 midway.c:1.66 if_ep.c:1.143 if_ex.c:1.58 if_fatm.c:1.20
if_fe.c:1.93 if_fwe.c:1.38 if_fwip.c:1.8 if_fxp.c:1.244 if_gem.c:1.33
if_hatm.c:1.25 if_hatm_intr.c:1.20 if_hatm_ioctl.c:1.13 if_hatm_rx.c:1.10
if_hatm_tx.c:1.14 if_hme.c:1.39 if_ie.c:1.104 if_ndis.c:1.101
if_ic.c:1.24 if_ipw.c:1.10 if_iwi.c:1.10 if_ixgb.c:1.13 if_lge.c:1.41
if_lnc.c:1.113 if_my.c:1.31 if_nge.c:1.77 if_nve.c:1.10 if_owi.c:1.12
if_patm.c:1.9 if_patm_intr.c:1.6 if_patm_ioctl.c:1.10 if_patm_tx.c:1.10
pdq_ifsubr.c:1.28 if_plip.c:1.38 if_ral.c:1.12 if_ral_pci.c:1.2
if_ray.c:1.81 if_rayvar.h:1.22 if_re.c:1.49 if_sbni.c:1.21 if_sbsh.c:1.14
if_sn.c:1.48 dp83932.c:1.21 if_snc_pccard.c:1.9 if_sr.c:1.70 if_tx.c:1.91
if_txp.c:1.33 if_aue.c:1.92 if_axe.c:1.32 if_cdce.c:1.8 if_cue.c:1.59
if_kue.c:1.66 if_rue.c:1.23 if_udav.c:1.16 if_ural.c:1.12 if_vge.c:1.16
if_vx.c:1.58 if_wi.c:1.185 if_wi_pci.c:1.26 if_wl.c:1.68 if_xe.c:1.60
if_xe_pccard.c:1.30 if_el.c:1.68 i4b_ipr.c:1.35 i4b_isppp.c:1.31
kern_poll.c:1.20 bridge.c:1.94 bridgestp.c:1.4 if_arcsubr.c:1.27
if_atm.h:1.24 if_atmsubr.c:1.40 if_bridge.c:1.16 if_ef.c:1.35
if_ethersubr.c:1.196 if_faith.c:1.37 if_fddisubr.c:1.100 if_fwsubr.c:1.14
if_gif.c:1.54 if_gre.c:1.34 if_iso88025subr.c:1.70 if_loop.c:1.107
if_ppp.c:1.106 if_spppsubr.c:1.121 if_tap.c:1.57 if_tun.c:1.154
if_vlan.c:1.80 ppp_tty.c:1.67 ieee80211_ioctl.c:1.32 atm_if.c:1.31
ng_eiface.c:1.33 ng_ether.c:1.50 ng_fec.c:1.19 ng_iface.c:1.44
ng_sppp.c:1.9 ip_carp.c:1.30 ip_fastfwd.c:1.30 in6.c:1.53 nd6_nbr.c:1.31
natm.c:1.40 if_dc.c:1.162 if_de.c:1.168 if_pcn.c:1.72 if_rl.c:1.154
if_sf.c:1.84 if_sis.c:1.135 if_sk.c:1.108 if_ste.c:1.86 if_ti.c:1.109
if_tl.c:1.101 if_vr.c:1.106 if_wb.c:1.81 if_xl.c:1.194 from HEAD to
RELENG_6:

  Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
  IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
  ifnet.if_drv_flags.  Device drivers are now responsible for
  synchronizing access to these flags, as they are in if_drv_flags.  This
  helps prevent races between the network stack and device driver in
  maintaining the interface flags field.

  Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
  some less so.

  Reviewed by:    pjd, bz

Approved by:	re (scottl)

using #error.

Suggested by:	jhb

Replace a KASSERT of LINUX_IFNAMSIZ == IFNAMSIZ with a preprocessor
check and #error message.  This will prevent nasty suprises if users
change IFNAMSIZ without updating the linux code appropriatly.

providing special version of CDIOCREADSUBCHANNEL ioctl(), which assumes that
result has to be placed into kernel space not user space. In the long run
more generic solution has to be designed WRT emulating various ioctl()s
that operate on userspace buffers, but right now there is only one such
ioctl() is emulated, so that it makes little sense.

MFC after:	2 weeks

Submitted by:	Jung-uk Kim <jkim@niksun.com>

Use positive, not negative logic.

on AMD64, and the general case where the emulated platform has different
size pointers than we use natively:
- declare certain structure members as l_uintptr_t and use the new PTRIN
  and PTROUT macros to convert to and from native pointers.
- declare some structures __packed on amd64 when the layout would differ
  from that used on i386.
- include <machine/../linux32/linux.h> instead of <machine/../linux/linux.h>
  if compiling with COMPAT_LINUX32. This will need to be revisited before
  32-bit and 64-bit Linux emulation support can coexist in the same kernel.
- other small scattered changes.

This should be a no-op on i386 and Alpha.