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David Herrmann 48ba813701 drm: drop redundant drm_file->is_master 
The drm_file->is_master field is redundant as it's equivalent to:
    drm_file->master && drm_file->master == drm_file->minor->master

1) "=>"
  Whenever we set drm_file->is_master, we also set:
      drm_file->minor->master = drm_file->master;

  Whenever we clear drm_file->is_master, we also call:
      drm_master_put(&drm_file->minor->master);
  which implicitly clears it to NULL.

2) "<="
  minor->master cannot be set if it is non-NULL. Therefore, it stays as
  is unless a file drops it.

  If minor->master is NULL, it is only set by places that also adjust
  drm_file->is_master.

Therefore, we can safely drop is_master and replace it by an inline helper
that matches:
    drm_file->master && drm_file->master == drm_file->minor->master

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
2014-08-05 16:07:50 +02:00
..
android staging: android: timed_output: fix use after free of dev 2014-06-19 17:33:37 -07:00
bcm drivers/staging: Remove useless return variables 2014-05-26 10:32:15 -07:00
ced1401
comedi staging: comedi: addi_apci_1564: add addi_watchdog dependency 2014-06-18 15:11:22 -07:00
cptm1217
crystalhd
cxt1e1 staging: ctx1e1: remove checks for three macros 2014-05-26 20:19:26 -07:00
dgap Revert "staging: dgap: remove unneeded kfree() in dgap_tty_register_ports()" 2014-05-29 13:59:03 -07:00
dgnc staging: dgnc: Use time_after_eq() 2014-05-25 11:53:44 -07:00
dgrp
et131x Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
frontier Staging/frontier/tranzport: coding style fixes 2014-05-28 14:30:33 -07:00
ft1000 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
fwserial
gdm72xx staging: gdm72xx: code cleanup 2014-05-24 07:23:15 +09:00
gdm724x
goldfish
gs_fpgaboot
iio staging: iio/ad7291: fix error code in ad7291_probe() 2014-06-21 11:35:30 +01:00
imx-drm drm: drop redundant drm_file->is_master 2014-08-05 16:07:50 +02:00
keucr staging: Convert __FUNCTION__ to __func__ 2014-05-25 11:05:07 -07:00
line6
lustre Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-06-12 10:30:18 -07:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-07-21 11:44:34 -07:00
mt29f_spinand staging/mt29f_spinand: coding style fixes 2014-06-01 16:46:57 -07:00
netlogic Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
nokia_h4p
nvec
octeon
octeon-usb staging: Convert __FUNCTION__ to __func__ 2014-05-25 11:05:07 -07:00
olpc_dcon staging/olpc_dcon: fix checkpatch warnings 2014-05-24 07:23:15 +09:00
ozwpan
panel staging: panel: (coding style) Multiple assignments 2014-05-25 10:59:52 -07:00
phison
quickstart
rtl8188eu staging: rtl8188eu: Remove unneeded version.h inclusion 2014-05-28 14:30:32 -07:00
rtl8192e Merge branch 'next' (accumulated 3.16 merge window patches) into master 2014-06-08 11:31:16 -07:00
rtl8192ee Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
rtl8192u Staging: rtl8192u: r8192U_wx.c Fixed a misplaced brace 2014-05-29 13:43:23 -07:00
rtl8712 staging: rtl8712: return -ENOMEM instead of -1 2014-05-27 11:55:29 -07:00
rtl8723au staging: rtl8723au: rtw_resume(): release semaphore before exit on error 2014-07-21 12:10:26 -07:00
rtl8821ae Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
rts5208
sep drivers/staging: Remove useless return variables 2014-05-26 10:32:15 -07:00
serqt_usb2
silicom staging: silicom: fix sparse warning for static variable 2014-06-01 16:46:56 -07:00
skein staging: skein: fix sparse warning for static declarations 2014-06-01 16:58:59 -07:00
slicoss staging: slicoss: clean up use of dev_err 2014-05-25 10:59:53 -07:00
speakup Merge branch 'next' (accumulated 3.16 merge window patches) into master 2014-06-08 11:31:16 -07:00
ste_rmi4
tidspbridge staging: tidspbridge: fix an erroneous removal of parentheses 2014-06-26 21:10:31 -04:00
unisys
usbip USB driver patches for 3.16-rc1 2014-06-03 09:11:20 -07:00
vme
vt6655 staging: vt6655: Fix disassociated messages every 10 seconds 2014-07-24 15:10:42 -07:00
vt6656 staging: vt6656: rf.c replace DBG_PRT debug messages 2014-05-28 14:10:46 -07:00
winbond
wlags49_h2
wlags49_h25
wlan-ng Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
xgifb
xillybus
Kconfig
Makefile
staging.c