Hi,
since commit
0ada120c883d ("perf: Make perf able to build with latest libbfd")
is in master, can it be backported to stable as well? I keep hitting
this with too new binutils on Linux 5.4.y and I have to keep
cherry-picking this commit to fix it.
Thanks
From: Xuebing Chen <chenxb_99091(a)126.com>
In linux-4.4.y,the <include/drm/drm_crtc.h> provides drm_for_each_plane_mask macro
and plane_mask is defined as bitmask of plane indices, such as
1 << drm_plane_index(plane). There is an error setting of plane_mask
in pan_display_atomic() function.
Please backport the following patch to the 4.4.y kernel stable tree:
commit 7118fd9bd975a9f3093239d4c0f4e15356b57fab
("drm/fb-helper: Use proper plane mask for fb cleanup")
The above patch fixes error setting of plane_mask in pan_display_atomic() function.
Cc: stable(a)vger.kernel.org
Cc: linux-kernel(a)vger.kernel.org
Signed-off-by: Xuebing Chen <chenxb_99091(a)126.com>
The patch below does not apply to the 4.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 1d148e218a0d0566b1c06f2f45f1436d53b049b2 Mon Sep 17 00:00:00 2001
From: "Wang, Yalin" <Yalin.Wang(a)sonymobile.com>
Date: Wed, 11 Feb 2015 15:24:48 -0800
Subject: [PATCH] mm: add VM_BUG_ON_PAGE() to page_mapcount()
Add VM_BUG_ON_PAGE() for slab pages. _mapcount is an union with slab
struct in struct page, so we must avoid accessing _mapcount if this page
is a slab page. Also remove the unneeded bracket.
Signed-off-by: Yalin Wang <yalin.wang(a)sonymobile.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8dd4fde9d2e5..c6bf813a6b3d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -484,7 +484,8 @@ static inline void page_mapcount_reset(struct page *page)
static inline int page_mapcount(struct page *page)
{
- return atomic_read(&(page)->_mapcount) + 1;
+ VM_BUG_ON_PAGE(PageSlab(page), page);
+ return atomic_read(&page->_mapcount) + 1;
}
static inline int page_count(struct page *page)
Several MFD child drivers register their class devices directly under
the parent device. This means you cannot blindly do devres conversions
so that deregistration ends up being tied to the parent device,
something which leads to use-after-free on driver unbind when the class
device is released while still being registered.
Fixes: 50154e29e5cc ("leds: lm3533: Use devm_led_classdev_register")
Cc: stable <stable(a)vger.kernel.org> # 4.6
Cc: Amitoj Kaur Chawla <amitoj1606(a)gmail.com>
Signed-off-by: Johan Hovold <johan(a)kernel.org>
---
drivers/leds/leds-lm3533.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/leds/leds-lm3533.c b/drivers/leds/leds-lm3533.c
index 9504ad405aef..b3edee703193 100644
--- a/drivers/leds/leds-lm3533.c
+++ b/drivers/leds/leds-lm3533.c
@@ -694,7 +694,7 @@ static int lm3533_led_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, led);
- ret = devm_led_classdev_register(pdev->dev.parent, &led->cdev);
+ ret = led_classdev_register(pdev->dev.parent, &led->cdev);
if (ret) {
dev_err(&pdev->dev, "failed to register LED %d\n", pdev->id);
return ret;
@@ -704,13 +704,18 @@ static int lm3533_led_probe(struct platform_device *pdev)
ret = lm3533_led_setup(led, pdata);
if (ret)
- return ret;
+ goto err_deregister;
ret = lm3533_ctrlbank_enable(&led->cb);
if (ret)
- return ret;
+ goto err_deregister;
return 0;
+
+err_deregister:
+ led_classdev_unregister(&led->cdev);
+
+ return ret;
}
static int lm3533_led_remove(struct platform_device *pdev)
@@ -720,6 +725,7 @@ static int lm3533_led_remove(struct platform_device *pdev)
dev_dbg(&pdev->dev, "%s\n", __func__);
lm3533_ctrlbank_disable(&led->cb);
+ led_classdev_unregister(&led->cdev);
return 0;
}
--
2.26.2