Patch "video: fbdev: via: remove possibly unused variables" has been added to the 4.9-stable tree

Patch "video: fbdev: via: remove possibly unused variables" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    video: fbdev: via: remove possibly unused variables

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     video-fbdev-via-remove-possibly-unused-variables.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 484c7bbf2649831714da3a0fa30213977458e9b5 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 14 Jun 2017 12:40:36 +0200
Subject: video: fbdev: via: remove possibly unused variables

From: Arnd Bergmann <arnd@arndb.de>

commit 484c7bbf2649831714da3a0fa30213977458e9b5 upstream.

When CONFIG_PROC_FS is disabled, we get warnings about unused variables
as remove_proc_entry() evaluates to an empty macro.

drivers/video/fbdev/via/viafbdev.c: In function 'viafb_remove_proc':
drivers/video/fbdev/via/viafbdev.c:1635:4: error: unused variable 'iga2_entry' [-Werror=unused-variable]
drivers/video/fbdev/via/viafbdev.c:1634:4: error: unused variable 'iga1_entry' [-Werror=unused-variable]

These are easy to avoid by using the pointer from the structure.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/video/fbdev/via/viafbdev.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/drivers/video/fbdev/via/viafbdev.c
+++ b/drivers/video/fbdev/via/viafbdev.c
@@ -1630,16 +1630,14 @@ static void viafb_init_proc(struct viafb
 }
 static void viafb_remove_proc(struct viafb_shared *shared)
 {
-	struct proc_dir_entry *viafb_entry = shared->proc_entry,
-		*iga1_entry = shared->iga1_proc_entry,
-		*iga2_entry = shared->iga2_proc_entry;
+	struct proc_dir_entry *viafb_entry = shared->proc_entry;
 
 	if (!viafb_entry)
 		return;
 
-	remove_proc_entry("output_devices", iga2_entry);
+	remove_proc_entry("output_devices", shared->iga2_proc_entry);
 	remove_proc_entry("iga2", viafb_entry);
-	remove_proc_entry("output_devices", iga1_entry);
+	remove_proc_entry("output_devices", shared->iga1_proc_entry);
 	remove_proc_entry("iga1", viafb_entry);
 	remove_proc_entry("supported_output_devices", viafb_entry);
 


Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.9/kasan-rework-kconfig-settings.patch
queue-4.9/tw5864-use-dev_warn-instead-of-warn-to-shut-up-warning.patch
queue-4.9/perf-x86-shut-up-false-positive-wmaybe-uninitialized-warning.patch
queue-4.9/go7007-add-media_camera_support-dependency.patch
queue-4.9/scsi-advansys-fix-build-warning-for-pci-n.patch
queue-4.9/video-fbdev-via-remove-possibly-unused-variables.patch
queue-4.9/drm-exynos-mark-pm-functions-as-__maybe_unused.patch
queue-4.9/binfmt_elf-compat-avoid-unused-function-warning.patch
queue-4.9/idle-i7300-add-pci-dependency.patch
queue-4.9/cw1200-fix-bogus-maybe-uninitialized-warning.patch
queue-4.9/x86-build-silence-the-build-with-make-s.patch
queue-4.9/gpio-xgene-mark-pm-functions-as-__maybe_unused.patch
queue-4.9/kvm-add-x86_local_apic-dependency.patch
queue-4.9/reiserfs-avoid-a-wmaybe-uninitialized-warning.patch
queue-4.9/scsi-advansys-fix-uninitialized-data-access.patch
queue-4.9/drm-i915-fix-intel_backlight_device_register-declaration.patch
queue-4.9/spi-bcm-qspi-shut-up-warning-about-cfi-header-inclusion.patch
queue-4.9/asoc-ux500-add-module_license-tag.patch
queue-4.9/x86-microcode-amd-change-load_microcode_amd-s-param-to-bool-to-fix-preemptibility-bug.patch
queue-4.9/video-fbdev-mmp-add-module_license.patch
queue-4.9/usb-phy-msm-add-regulator-dependency.patch
queue-4.9/arm64-dts-add-cooling-cells-to-cpu-nodes.patch
queue-4.9/vmxnet3-prevent-building-with-64k-pages.patch
queue-4.9/x86-platform-add-pci-dependency-for-punit_atom_debug.patch
queue-4.9/alsa-hda-ca0132-fix-possible-null-pointer-use.patch
queue-4.9/thermal-fix-intel_soc_dts_iosf_core-dependencies.patch
queue-4.9/arm64-define-bug-instruction-without-config_bug.patch
queue-4.9/arm64-sunxi-always-enable-reset-controller.patch
queue-4.9/tc358743-fix-register-i2c_rd-wr-functions.patch
queue-4.9/security-keys-big_key-requires-config_crypto.patch
queue-4.9/drm-i915-hide-unused-intel_panel_set_backlight-function.patch
queue-4.9/x86-fpu-math-emu-fix-possible-uninitialized-variable-use.patch
queue-4.9/arm-8743-1-bl_switcher-add-module_license-tag.patch
queue-4.9/em28xx-only-use-mt9v011-if-camera-support-is-enabled.patch
queue-4.9/arm64-fix-warning-about-swapper_pg_dir-overflow.patch
queue-4.9/shmem-avoid-maybe-uninitialized-warning.patch
queue-4.9/input-tca8418_keypad-hide-gcc-4.9-wmaybe-uninitialized-warning.patch
queue-4.9/drm-nouveau-hide-gcc-4.9-wmaybe-uninitialized.patch
queue-4.9/x86-add-multiuser-dependency-for-kvm.patch
queue-4.9/isdn-eicon-reduce-stack-size-of-sig_ind-function.patch