openwrt/target/linux/bcm27xx/patches-5.4/950-0486-drm-modes-parse_cmdline-Set-bpp-refresh_specified-af.patch
Petr Štetiar 5ecc0cfd6f kernel: bump 5.4 to 5.4.28
Changelog since 5.4.24 mentions CVE-2019-19769, CVE-2020-8648,
CVE-2020-8649 and CVE-2020-8647.

Removed upstreamed:

 generic: 507-v5.6-iio-chemical-sps30-fix-missing-triggered-buffer-depe.patch
 generic: 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch
 bcm27xx: 950-0435-ASoC-pcm512x-Fix-unbalanced-regulator-enable-call-in.patch
 ipq806x: 701-stmmac-fix-notifier-registration.patch
 lantiq: 002-pinctrl-falcon-fix-syntax-error.patch
 octeontx: 0002-net-thunderx-workaround-BGX-TX-Underflow-issue.patch

Run tested: apu2, qemu-x86-64, apalis, a64-olinuxino, nbg6617
Build tested: sunxi/a53, imx6, x86/64, ipq40xx

Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> [apu2]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-03-28 13:03:02 +01:00

65 lines
1.9 KiB
Diff

From 5b7efd2fa0c75164373d6faf28fec4b89065d39c Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 18 Nov 2019 16:51:28 +0100
Subject: [PATCH] drm/modes: parse_cmdline: Set bpp/refresh_specified
after successful parsing
Commit 6a2d163756545aa3180d7851d5f8322b865e72be upstream.
drm_connector_get_cmdline_mode() calls
drm_mode_parse_command_line_for_connector() with &connector->cmdline_mode
as mode argument, so anything which we store in the mode arguments gets
kept even if we return false.
Avoid storing a possibly false-postive bpp/refresh_specified setting
in connector->cmdline_mode by moving the setting of these to after
successful parsing of the bpp/refresh parts of the video= argument.
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-7-hdegoede@redhat.com
---
drivers/gpu/drm/drm_modes.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1778,10 +1778,8 @@ bool drm_mode_parse_command_line_for_con
/* Try to locate the bpp and refresh specifiers, if any */
bpp_ptr = strchr(name, '-');
- if (bpp_ptr) {
+ if (bpp_ptr)
bpp_off = bpp_ptr - name;
- mode->bpp_specified = true;
- }
refresh_ptr = strchr(name, '@');
if (refresh_ptr) {
@@ -1789,7 +1787,6 @@ bool drm_mode_parse_command_line_for_con
return false;
refresh_off = refresh_ptr - name;
- mode->refresh_specified = true;
}
/* Locate the start of named options */
@@ -1832,6 +1829,8 @@ bool drm_mode_parse_command_line_for_con
ret = drm_mode_parse_cmdline_bpp(bpp_ptr, &bpp_end_ptr, mode);
if (ret)
return false;
+
+ mode->bpp_specified = true;
}
if (refresh_ptr) {
@@ -1839,6 +1838,8 @@ bool drm_mode_parse_command_line_for_con
&refresh_end_ptr, mode);
if (ret)
return false;
+
+ mode->refresh_specified = true;
}
/*