The patch below does not apply to the 4.15-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 9f99e50d460ac7fd5f6c9b97aad0088c28c8656d Mon Sep 17 00:00:00 2001
From: Amir Goldstein <amir73il(a)gmail.com>
Date: Wed, 11 Apr 2018 20:09:29 +0300
Subject: [PATCH] ovl: set lower layer st_dev only if setting lower st_ino
For broken hardlinks, we do not return lower st_ino, so we should
also not return lower pseudo st_dev.
Fixes: a0c5ad307ac0 ("ovl: relax same fs constraint for constant st_ino")
Cc: <stable(a)vger.kernel.org> #v4.15
Signed-off-by: Amir Goldstein <amir73il(a)gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi(a)redhat.com>
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 4689716f23d8..1d75b2e96c96 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -118,13 +118,10 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
*/
if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) ||
(!ovl_verify_lower(dentry->d_sb) &&
- (is_dir || lowerstat.nlink == 1)))
+ (is_dir || lowerstat.nlink == 1))) {
stat->ino = lowerstat.ino;
-
- if (samefs)
- WARN_ON_ONCE(stat->dev != lowerstat.dev);
- else
stat->dev = ovl_get_pseudo_dev(dentry);
+ }
}
if (samefs) {
/*
The patch below does not apply to the 4.16-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 41387bb7d869e96df4b870e1880ad49f053cc755 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <mawilcox(a)microsoft.com>
Date: Fri, 2 Mar 2018 10:40:14 -0800
Subject: [PATCH] Documentation/sphinx: Fix Directive import error
Sphinx 1.7 removed sphinx.util.compat.Directive so people
who have upgraded cannot build the documentation. Switch to
docutils.parsers.rst.Directive which has been available since
docutils 0.5 released in 2009.
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1083694
Co-developed-by: Takashi Iwai <tiwai(a)suse.de>
Acked-by: Jani Nikula <jani.nikula(a)intel.com>
Cc: stable(a)vger.kernel.org
Signed-off-by: Matthew Wilcox <mawilcox(a)microsoft.com>
Signed-off-by: Jonathan Corbet <corbet(a)lwn.net>
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 39aa9e8697cc..fbedcc39460b 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -36,8 +36,7 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
-from docutils.parsers.rst import directives
-from sphinx.util.compat import Directive
+from docutils.parsers.rst import directives, Directive
from sphinx.ext.autodoc import AutodocReporter
__version__ = '1.0'
Hi Greg,
Upstream commit 0c4c5860e998 ("hwmon: (ina2xx) Fix access to uninitialized
mutex") fixes commit 5d389b125186 ("hwmon: (ina2xx) Make calibration register
value fixed"), which has found its way into v4.4.y, v4.9.y, v4.14.y, and
v4.15.y.
Please apply commit 0c4c5860e998 to all affected releases to fix the
resulting regression.
Maybe Sasha's script could be improved to look for Fixes: tags when
suggesting to apply patches to older releases.
Thanks,
Guenter
在 2018-04-17 18:32,Greg KH 写道:
> On Tue, Apr 17, 2018 at 11:32:42AM +0800, leiwan(a)codeaurora.org wrote:
>>
>> xhci-plat Shutdown callback should check HCD_FLAG_HW_ACCESSIBLE
>> before accessing any register. This should avoid hung with access
>> controllers which support runtime suspend
>>
>> This can fix for issue of https://patchwork.kernel.org/patch/10339317/
>> corresponding upload in CAF:
>> https://source.codeaurora.org/quic/la/kernel/msm-4.4/commit/?h=LV.HB.1.1.5-…
>>
>> full patch refer attachment.
>> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
>> index 9b27798..bdf914d 100644
>> --- a/drivers/usb/host/xhci.c
>> +++ b/drivers/usb/host/xhci.c
>> @@ -702,6 +702,10 @@ static void xhci_shutdown(struct usb_hcd *hcd)
>> usb_disable_xhci_ports(to_pci_dev(hcd->self.sysdev));
>>
>> spin_lock_irq(&xhci->lock);
>> + if (!HCD_HW_ACCESSIBLE(hcd)) {
>> + spin_unlock_irq(&xhci->lock);
>> + return;
>> + }
>> xhci_halt(xhci);
>
> A blank line after the if statement?
> >> [lei]yes
> What about all of the other places in this driver that you should also
> check for this? Look at the other host controllers, shouldn't you
> mirror what they are doing?
> >> [lei]I checked other usb host module shutdown and suspend workflow.
>> All usb host driver need to check hw accessable before
>> read/write usb register especially in runtime PM case..
> And this needs a Fixes: tag, along with a cc: stable so as to properly
> get backported as this is broken in some stable kernels right now.
> >> [lei] Added by v2 patch
> thanks,
>
> greg k-h
From c03697fa259ab38d1002598ec2ccfac37607ca0b Mon Sep 17 00:00:00 2001
From: Lei wang <leiwan(a)codeaurora.org>
Date: Tue, 17 Apr 2018 10:55:35 +0800
Subject: [PATCH v2] xhci: plat: Fix xhci_plat shutdown hung
xhci-plat Shutdown callback should check HCD_FLAG_HW_ACCESSIBLE
before accessing any register. This should avoid hung with access
controllers which support runtime suspend
Fixes: b07c12517f2a ("xhci: plat: Register shutdown for xhci_plat")
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Lei wang <leiwan(a)codeaurora.org>
---
drivers/usb/host/xhci.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 9b27798..bdf914d 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -702,6 +702,10 @@ static void xhci_shutdown(struct usb_hcd *hcd)
usb_disable_xhci_ports(to_pci_dev(hcd->self.sysdev));
spin_lock_irq(&xhci->lock);
+ if (!HCD_HW_ACCESSIBLE(hcd)) {
+ spin_unlock_irq(&xhci->lock);
+ return;
+ }
xhci_halt(xhci);
/* Workaround for spurious wakeups at shutdown with HSW */
if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
--
1.9.1
The patch below was submitted to be applied to the 4.16-stable tree.
I fail to see how this patch meets the stable kernel rules as found at
Documentation/process/stable-kernel-rules.rst.
I could be totally wrong, and if so, please respond to
<stable(a)vger.kernel.org> and let me know why this patch should be
applied. Otherwise, it is now dropped from my patch queues, never to be
seen again.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 3140c156e919b0f5fad5c5f6cf7876c39d1d4f06 Mon Sep 17 00:00:00 2001
From: Peng Hao <peng.hao2(a)zte.com.cn>
Date: Mon, 2 Apr 2018 09:15:32 +0800
Subject: [PATCH] kvm: x86: fix a compile warning
fix a "warning: no previous prototype".
Cc: stable(a)vger.kernel.org
Signed-off-by: Peng Hao <peng.hao2(a)zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8f108131d85d..b2ff74b12ec4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7943,7 +7943,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
}
EXPORT_SYMBOL_GPL(kvm_task_switch);
-int kvm_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvm_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
{
if ((sregs->efer & EFER_LME) && (sregs->cr0 & X86_CR0_PG)) {
/*
The label .Llast_fixup\@ is jumped to on page fault within the final
byte set loop of memset (on < MIPSR6 architectures). For some reason, in
this fault handler, the v1 register is randomly set to a2 & STORMASK.
This clobbers v1 for the calling function. This can be observed with the
following test code:
static int __init __attribute__((optimize("O0"))) test_clear_user(void)
{
register int t asm("v1");
char *test;
int j, k;
pr_info("\n\n\nTesting clear_user\n");
test = vmalloc(PAGE_SIZE);
for (j = 256; j < 512; j++) {
t = 0xa5a5a5a5;
if ((k = clear_user(test + PAGE_SIZE - 256, j)) != j - 256) {
pr_err("clear_user (%px %d) returned %d\n", test + PAGE_SIZE - 256, j, k);
}
if (t != 0xa5a5a5a5) {
pr_err("v1 was clobbered to 0x%x!\n", t);
}
}
return 0;
}
late_initcall(test_clear_user);
Which demonstrates that v1 is indeed clobbered (MIPS64):
Testing clear_user
v1 was clobbered to 0x1!
v1 was clobbered to 0x2!
v1 was clobbered to 0x3!
v1 was clobbered to 0x4!
v1 was clobbered to 0x5!
v1 was clobbered to 0x6!
v1 was clobbered to 0x7!
Since the number of bytes that could not be set is already contained in
a2, the andi placing a value in v1 is not necessary and actively
harmful in clobbering v1.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable(a)vger.kernel.org
Reported-by: James Hogan <jhogan(a)kernel.org>
Signed-off-by: Matt Redfearn <matt.redfearn(a)mips.com>
---
arch/mips/lib/memset.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S
index fa3bec269331..84e91f4fdf53 100644
--- a/arch/mips/lib/memset.S
+++ b/arch/mips/lib/memset.S
@@ -258,7 +258,7 @@
.Llast_fixup\@:
jr ra
- andi v1, a2, STORMASK
+ nop
.Lsmall_fixup\@:
PTR_SUBU a2, t1, a0
--
2.7.4
The patch below does not apply to the 4.14-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 41387bb7d869e96df4b870e1880ad49f053cc755 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <mawilcox(a)microsoft.com>
Date: Fri, 2 Mar 2018 10:40:14 -0800
Subject: [PATCH] Documentation/sphinx: Fix Directive import error
Sphinx 1.7 removed sphinx.util.compat.Directive so people
who have upgraded cannot build the documentation. Switch to
docutils.parsers.rst.Directive which has been available since
docutils 0.5 released in 2009.
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1083694
Co-developed-by: Takashi Iwai <tiwai(a)suse.de>
Acked-by: Jani Nikula <jani.nikula(a)intel.com>
Cc: stable(a)vger.kernel.org
Signed-off-by: Matthew Wilcox <mawilcox(a)microsoft.com>
Signed-off-by: Jonathan Corbet <corbet(a)lwn.net>
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 39aa9e8697cc..fbedcc39460b 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -36,8 +36,7 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
-from docutils.parsers.rst import directives
-from sphinx.util.compat import Directive
+from docutils.parsers.rst import directives, Directive
from sphinx.ext.autodoc import AutodocReporter
__version__ = '1.0'
The patch below does not apply to the 4.15-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 41387bb7d869e96df4b870e1880ad49f053cc755 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <mawilcox(a)microsoft.com>
Date: Fri, 2 Mar 2018 10:40:14 -0800
Subject: [PATCH] Documentation/sphinx: Fix Directive import error
Sphinx 1.7 removed sphinx.util.compat.Directive so people
who have upgraded cannot build the documentation. Switch to
docutils.parsers.rst.Directive which has been available since
docutils 0.5 released in 2009.
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1083694
Co-developed-by: Takashi Iwai <tiwai(a)suse.de>
Acked-by: Jani Nikula <jani.nikula(a)intel.com>
Cc: stable(a)vger.kernel.org
Signed-off-by: Matthew Wilcox <mawilcox(a)microsoft.com>
Signed-off-by: Jonathan Corbet <corbet(a)lwn.net>
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 39aa9e8697cc..fbedcc39460b 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -36,8 +36,7 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
-from docutils.parsers.rst import directives
-from sphinx.util.compat import Directive
+from docutils.parsers.rst import directives, Directive
from sphinx.ext.autodoc import AutodocReporter
__version__ = '1.0'