Commit cbf2f8a9 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

Merge tag 'efi-urgent' of... 

Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into efi/urgent

 * Make for_each_efi_memory_desc_in_map() safe on Xen and prevent an
   infinte loop - Jan Beulich

 * Fix boot error on arm64 Qualcomm platforms by refactoring and
   improving the ExitBootServices() hack we already for x86 and moving
   it to the libstub - Jeffrey Hugo

 * Use correct return data type for of_get_flat_dt_subnode_by_name()
   so that we correctly handle errors - Andrzej Hajda
parents fa8410b3 d6493401

.mailmap

+2 −0
Original line number Diff line number Diff line
@@ -158,6 +158,8 @@ Valdis Kletnieks <Valdis.Kletnieks@vt.edu> 
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>

Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>

Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>

Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>

Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>

Takashi YOSHII <takashi.yoshii.zj@renesas.com>

Yusuke Goda <goda.yusuke@renesas.com>

Gustavo Padovan <gustavo@las.ic.unicamp.br>

Documentation/ABI/stable/sysfs-devices

+1 −1
Original line number Diff line number Diff line 
# Note: This documents additional properties of any device beyond what

# is documented in Documentation/sysfs-rules.txt



What:		/sys/devices/*/of_path

What:		/sys/devices/*/of_node

Date:		February 2015

Contact:	Device Tree mailing list <devicetree@vger.kernel.org>

Description:

Documentation/PCI/MSI-HOWTO.txt

+10 −14
Original line number Diff line number Diff line
@@ -94,14 +94,11 @@ has a requirements for a minimum number of vectors the driver can pass a 
min_vecs argument set to this limit, and the PCI core will return -ENOSPC

if it can't meet the minimum number of vectors.



The flags argument should normally be set to 0, but can be used to pass the

PCI_IRQ_NOMSI and PCI_IRQ_NOMSIX flag in case a device claims to support

MSI or MSI-X, but the support is broken, or to pass PCI_IRQ_NOLEGACY in

case the device does not support legacy interrupt lines.



By default this function will spread the interrupts around the available

CPUs, but this feature can be disabled by passing the PCI_IRQ_NOAFFINITY

flag.

The flags argument is used to specify which type of interrupt can be used

by the device and the driver (PCI_IRQ_LEGACY, PCI_IRQ_MSI, PCI_IRQ_MSIX).

A convenient short-hand (PCI_IRQ_ALL_TYPES) is also available to ask for

any possible kind of interrupt.  If the PCI_IRQ_AFFINITY flag is set,

pci_alloc_irq_vectors() will spread the interrupts around the available CPUs.



To get the Linux IRQ numbers passed to request_irq() and free_irq() and the

vectors, use the following function:
@@ -131,7 +128,7 @@ larger than the number supported by the device it will automatically be 
capped to the supported limit, so there is no need to query the number of

vectors supported beforehand:



	nvec = pci_alloc_irq_vectors(pdev, 1, nvec, 0);

	nvec = pci_alloc_irq_vectors(pdev, 1, nvec, PCI_IRQ_ALL_TYPES)

	if (nvec < 0)

		goto out_err;
@@ -140,7 +137,7 @@ interrupts it can request a particular number of interrupts by passing that 
number to pci_alloc_irq_vectors() function as both 'min_vecs' and

'max_vecs' parameters:



	ret = pci_alloc_irq_vectors(pdev, nvec, nvec, 0);

	ret = pci_alloc_irq_vectors(pdev, nvec, nvec, PCI_IRQ_ALL_TYPES);

	if (ret < 0)

		goto out_err;
@@ -148,15 +145,14 @@ The most notorious example of the request type described above is enabling 
the single MSI mode for a device.  It could be done by passing two 1s as

'min_vecs' and 'max_vecs':



	ret = pci_alloc_irq_vectors(pdev, 1, 1, 0);

	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);

	if (ret < 0)

		goto out_err;



Some devices might not support using legacy line interrupts, in which case

the PCI_IRQ_NOLEGACY flag can be used to fail the request if the platform

can't provide MSI or MSI-X interrupts:

the driver can specify that only MSI or MSI-X is acceptable:



	nvec = pci_alloc_irq_vectors(pdev, 1, nvec, PCI_IRQ_NOLEGACY);

	nvec = pci_alloc_irq_vectors(pdev, 1, nvec, PCI_IRQ_MSI | PCI_IRQ_MSIX);

	if (nvec < 0)

		goto out_err;

Documentation/PCI/pci.txt

+0 −1
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@@ -124,7 +124,6 @@ initialization with a pointer to a structure describing the driver 


The ID table is an array of struct pci_device_id entries ending with an

all-zero entry.  Definitions with static const are generally preferred.

Use of the deprecated macro DEFINE_PCI_DEVICE_TABLE should be avoided.



Each entry consists of:

Documentation/arm64/silicon-errata.txt

+1 −0
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@@ -53,6 +53,7 @@ stable kernels. 
| ARM            | Cortex-A57      | #832075         | ARM64_ERRATUM_832075    |

| ARM            | Cortex-A57      | #852523         | N/A                     |

| ARM            | Cortex-A57      | #834220         | ARM64_ERRATUM_834220    |

| ARM            | Cortex-A72      | #853709         | N/A                     |

| ARM            | MMU-500         | #841119,#826419 | N/A                     |

|                |                 |                 |                         |

| Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375    |

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