- 26 Feb, 2015 1 commit
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Geert Uytterhoeven authored
Enable support for shmobile platforms that became multi-platform aware. Several non-critical drivers and subsystems are built as modules, to keep kernel size reasonable. Tested on: - r8a73a4/ape6evm: - U-Boot fails with "Error: unrecognized/unsupported machine ID", - kexec works. - r8a7740/armadillo: - Hermit boot loader fails (larger image, more memory corruption), - kexec works. - r8a7791/koelsch, - sh73a0/kzm9g: - zImage+DTB from U-Boot needs CONFIG_ARM_ATAG_DTB_COMPAT=n, - kexec works. - am335x/boneblack. Signed-off-by:Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
Arnd Bergmann <arnd@arndb.de>
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- 25 Feb, 2015 2 commits
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Arnd Bergmann authored
Merge tag 'fixes-v4.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for various omap devices. It's all dts and defconfig changes for this set: - Fix wrong DMA properties for dma to avoid them getting copied wrong again before we start actually using them - USB fixes to revert the extcon changes as the driver did not get merged yet and cause issues - Omap5 and dra7 fixes to boot from sata - Fix few am437x issues for i2c and pinctrl - Fix beaglebone for hardwared USB configuration - Defconfig changes for NAND, SATA and TPS62362 - Fix n900 i2c numbering for legacy user space and smc91x register offset so it works also for qemu - Fix incomplete USB configuration for dm816x * tag 'fixes-v4.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am335x-bone*: usb0 is hardwired for peripheral ARM: dts: dra7x-evm: beagle-x15: Fix USB Host ARM: omap2plus_defconfig: Fix SATA boot ARM: omap2plus_defconfig: Enable OMAP NAND BCH driver ARM: dts: dra7: Correct the dma controller's property names ARM: dts: omap5: Correct the dma controller's property names ARM: dts: omap4: Correct the dma controller's property names ARM: dts: omap3: Correct the dma controller's property names ARM: dts: omap2: Correct the dma controller's property names ARM: dts: am437x-idk: fix sleep pinctrl state ARM: omap2plus_defconfig: enable TPS62362 regulator ARM: dts: am437x-idk: fix TPS62362 i2c bus ARM: dts: n900: Fix offset for smc91x ethernet ARM: dts: n900: fix i2c bus numbering ARM: dts: Fix USB dts configuration for dm816x ARM: dts: OMAP5: Fix SATA PHY node ARM: dts: DRA7: Fix SATA PHY node
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Sudeep Holla authored
Commit 5d425c18 ("arm64: kernel: add support for cpu cache information") adds cacheinfo support for ARM64. Since there's no architectural way of detecting the cpus that share particular cache, device tree can be used and the core cacheinfo already supports the same. This patch adds the L2 cache topology on Juno board, FVP/RTSM and foundation models. Signed-off-by:
Sudeep Holla <sudeep.holla@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Liviu Dudau <Liviu.Dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by:
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- 24 Feb, 2015 17 commits
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Robert Nelson authored
Fixes: http://bugs.elinux.org/issues/127 the bb.org community was seeing random reboots before this change. Signed-off-by:
Robert Nelson <robertcnelson@gmail.com> Reviewed-by:
Felipe Balbi <balbi@ti.com> Acked-by:
Tony Lindgren <tony@atomide.com>
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Roger Quadros authored
In commit 87517d26 ("ARM: dts: dra7-evm: Add extcon nodes for USB") we enabled Extcon USB gpio to tackle the USB ID pin and get peripheral mode to work. But the extcon-gpio-usb driver [1] didn't make it into v4.0 and this makes the USB driver defer probe indefinitely breaking USB Host functionality. As a temporary fix we remove the extcon handle from the USB controller and add it back when the extcon driver merges in v4.1. [1] - https://lkml.org/lkml/2015/2/2/187Signed-off-by:
Roger Quadros <rogerq@ti.com> Signed-off-by:
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Roger Quadros authored
SATA operation depends on PIPE3 PHY and if we want to boot from SATA drives, we have to have the PIPE3 PHY driver built-in. Signed-off-by:
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Roger Quadros authored
Without this NAND doesn't work on most EVMs. Signed-off-by:
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Peter Ujfalusi authored
According to the Documentation/devicetree/bindings/dma/dma.txt the dma-channels and dma-requests property should not have '#'. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by:
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Peter Ujfalusi authored
According to the Documentation/devicetree/bindings/dma/dma.txt the dma-channels and dma-requests property should not have '#'. Signed-off-by:
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Peter Ujfalusi authored
According to the Documentation/devicetree/bindings/dma/dma.txt the dma-channels and dma-requests property should not have '#'. Signed-off-by:
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Peter Ujfalusi authored
According to the Documentation/devicetree/bindings/dma/dma.txt the dma-channels and dma-requests property should not have '#'. Signed-off-by:
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Peter Ujfalusi authored
According to the Documentation/devicetree/bindings/dma/dma.txt the dma-channels and dma-requests property should not have '#'. Signed-off-by:
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Felipe Balbi authored
we have i2c0 sleep pinctrl state but were passing default state anyhow. Fix that. Signed-off-by:
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Felipe Balbi authored
This regulator is used on AM437x Industrial Development Kit. Signed-off-by:
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Felipe Balbi authored
As it turns out, tps62362 is actually on I2C bus0, not bus1. This has gone unnoticed because Linux doesn't use (as of now) that regulator at all, it's setup by the bootloader and left as is. While at that, also add missing reg property for our regulator. Signed-off-by:
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Pali Rohár authored
Offset for smc91x must be zero otherwise smc91x linux kernel driver does not detect smc91x ethernet hardware in qemu N900 machine. The 0x300 offset was used to supress a warning the smsc911x driver produces about non-standard offset as 0x300 seems to be the EEPROM default. As only three address lines are connected both 0 and 0x300 will work just fine with 0 being correct. The warning about the non-standard offset can be fixed by writing to EEPROM as that's needed in any case to set the MAC address. Signed-off-by:
Pali Rohár <pali.rohar@gmail.com> [tony@atomide.com: updated comments, just use 0 instead of 0x0] Signed-off-by:
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Ivaylo Dimitrov authored
With legacy boot i2c buses on Nokia N900 are numbered i2c1, i2c2 and i2c3. Commit 20b80942 ("ARM: dts: OMAP3+: Add i2c aliases") fixed the numbering with DT boot, but introduced a regression on N900 - aliases become i2c0, i2c1 and i2c2. Fix that by providing the correct aliases in the board dts. Signed-off-by:
Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Tested-by:
Nishanth Menon <nm@ti.com> [tony@atomide.com: this is needed for legacy user space to work] Signed-off-by:
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Tony Lindgren authored
Commit 7800064b ("ARM: dts: Add basic dm816x device tree configuration") added basic devices for dm816x, but I was not able to test the USB completely because of an unconfigured USB phy, and I only tested it to make sure the Mentor chips are detected and clocked without a phy. After testing the USB with actual devices I noticed a few issues that should be fixed to avoid confusion: - The USB id pin on dm8168-evm is hardwired and can be changed only by software. As there are two USB-A type connectors, let's start both in host mode instead of otg. - The Mentor core is configured in such a way on dm8168-evm that it's not capable of multipoint at least on revision c board that I have. - We need ranges for the syscon to properly set up the phy as children of the SCM syscon area. - Let's not disable the second interface, the board specific dts files can do that if really needed. Most boards should just keep it enabled to ensure the device is idled properly. Note that also a phy and several musb fixes are still needed to make the USB to work properly in addition to this fix. Cc: Brian Hutchinson <b.hutchman@gmail.com> Signed-off-by:
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Roger Quadros authored
The sata_ref_clk is a reference clock to the SATA phy. This fixes SATA malfunction across suspend/resume or when SATA driver is used as a module. Signed-off-by:
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Roger Quadros authored
The sata_ref_clk is a reference clock to the SATA phy. This fixes SATA malfunction across suspend/resume or when SATA driver is used as a module. Signed-off-by:
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- 23 Feb, 2015 3 commits
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Linus Torvalds authored
.. after extensive statistical analysis of my G+ polling, I've come to the inescapable conclusion that internet polls are bad. Big surprise. But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38% margin, in a poll that people weren't even supposed to participate in. Who can argue with solid numbers like that? 5,796 votes from people who can't even follow the most basic directions? In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%, but with a total of 29,110 votes right now. Now, arguably, that vote spread is only about 3,200 votes, which is less than the almost six thousand votes that the "please ignore" poll got, so it could be considered noise. But hey, I asked, so I'll honor the votes.
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 fixes from Ted Ts'o: "Ext4 bug fixes. We also reserved code points for encryption and read-only images (for which the implementation is mostly just the reserved code point for a read-only feature :-)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix indirect punch hole corruption ext4: ignore journal checksum on remount; don't fail ext4: remove duplicate remount check for JOURNAL_CHECKSUM change ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize ext4: support read-only images ext4: change to use setup_timer() instead of init_timer() ext4: reserve codepoints used by the ext4 encryption feature jbd2: complain about descriptor block checksum errors
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull more vfs updates from Al Viro: "Assorted stuff from this cycle. The big ones here are multilayer overlayfs from Miklos and beginning of sorting ->d_inode accesses out from David" * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits) autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation procfs: fix race between symlink removals and traversals debugfs: leave freeing a symlink body until inode eviction Documentation/filesystems/Locking: ->get_sb() is long gone trylock_super(): replacement for grab_super_passive() fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) SELinux: Use d_is_positive() rather than testing dentry->d_inode Smack: Use d_is_positive() rather than testing dentry->d_inode TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR() Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb VFS: Split DCACHE_FILE_TYPE into regular and special types VFS: Add a fallthrough flag for marking virtual dentries VFS: Add a whiteout dentry type VFS: Introduce inode-getting helpers for layered/unioned fs environments Infiniband: Fix potential NULL d_inode dereference posix_acl: fix reference leaks in posix_acl_create autofs4: Wrong format for printing dentry ...
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- 22 Feb, 2015 17 commits
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git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fix from Russell King: "Just one fix this time around. __iommu_alloc_buffer() can cause a BUG() if dma_alloc_coherent() is called with either __GFP_DMA32 or __GFP_HIGHMEM set. The patch from Alexandre addresses this" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer()
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Al Viro authored
X-Coverup: just ask spender Cc: stable@vger.kernel.org Signed-off-by:Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
use_pde()/unuse_pde() in ->follow_link()/->put_link() resp. Cc: stable@vger.kernel.org Signed-off-by: -
Al Viro authored
As it is, we have debugfs_remove() racing with symlink traversals. Supply ->evict_inode() and do freeing there - inode will remain pinned until we are done with the symlink body. And rip the idiocy with checking if dentry is positive right after we'd verified debugfs_positive(), which is a stronger check... Cc: stable@vger.kernel.org Signed-off-by: -
Al Viro authored
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Konstantin Khlebnikov authored
I've noticed significant locking contention in memory reclaimer around sb_lock inside grab_super_passive(). Grab_super_passive() is called from two places: in icache/dcache shrinkers (function super_cache_scan) and from writeback (function __writeback_inodes_wb). Both are required for progress in memory allocator. Grab_super_passive() acquires sb_lock to increment sb->s_count and check sb->s_instances. It seems sb->s_umount locked for read is enough here: super-block deactivation always runs under sb->s_umount locked for write. Protecting super-block itself isn't a problem: in super_cache_scan() sb is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers are still active. Inside writeback super-block comes from inode from bdi writeback list under wb->list_lock. This patch removes locking sb_lock and checks s_instances under s_umount: generic_shutdown_super() unlinks it under sb->s_umount locked for write. New variant is called trylock_super() and since it only locks semaphore, callers must call up_read(&sb->s_umount) instead of drop_super(sb) when they're done. Signed-off-by:
Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by:
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David Howells authored
Fanotify probably doesn't want to watch autodirs so make it use d_can_lookup() rather than d_is_dir() when checking a dir watch and give an error on fake directories. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
Fix up the following scripted S_ISDIR/S_ISREG/S_ISLNK conversions (or lack thereof) in cachefiles: (1) Cachefiles mostly wants to use d_can_lookup() rather than d_is_dir() as it doesn't want to deal with automounts in its cache. (2) Coccinelle didn't find S_IS* expressions in ASSERT() statements in cachefiles. Signed-off-by: -
David Howells authored
Convert the following where appropriate: (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry). (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry). (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more complicated than it appears as some calls should be converted to d_can_lookup() instead. The difference is whether the directory in question is a real dir with a ->lookup op or whether it's a fake dir with a ->d_automount op. In some circumstances, we can subsume checks for dentry->d_inode not being NULL into this, provided we the code isn't in a filesystem that expects d_inode to be NULL if the dirent really *is* negative (ie. if we're going to use d_inode() rather than d_backing_inode() to get the inode pointer). Note that the dentry type field may be set to something other than DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS manages the fall-through from a negative dentry to a lower layer. In such a case, the dentry type of the negative union dentry is set to the same as the type of the lower dentry. However, if you know d_inode is not NULL at the call site, then you can use the d_is_xxx() functions even in a filesystem. There is one further complication: a 0,0 chardev dentry may be labelled DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was intended for special directory entry types that don't have attached inodes. The following perl+coccinelle script was used: use strict; my @callers; open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') || die "Can't grep for S_ISDIR and co. callers"; @callers = <$fd>; close($fd); unless (@callers) { print "No matches\n"; exit(0); } my @cocci = ( '@@', 'expression E;', '@@', '', '- S_ISLNK(E->d_inode->i_mode)', '+ d_is_symlink(E)', '', '@@', 'expression E;', '@@', '', '- S_ISDIR(E->d_inode->i_mode)', '+ d_is_dir(E)', '', '@@', 'expression E;', '@@', '', '- S_ISREG(E->d_inode->i_mode)', '+ d_is_reg(E)' ); my $coccifile = "tmp.sp.cocci"; open($fd, ">$coccifile") || die $coccifile; print($fd "$_\n") || die $coccifile foreach (@cocci); close($fd); foreach my $file (@callers) { chomp $file; print "Processing ", $file, "\n"; system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 || die "spatch failed"; } [AV: overlayfs parts skipped] Signed-off-by: -
David Howells authored
Use d_is_positive() rather than testing dentry->d_inode in SELinux to get rid of direct references to d_inode outside of the VFS. Signed-off-by:
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David Howells authored
Use d_is_positive() rather than testing dentry->d_inode in Smack to get rid of direct references to d_inode outside of the VFS. Signed-off-by:
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David Howells authored
Use d_is_dir() rather than d_inode and S_ISDIR(). Note that this will include fake directories such as automount triggers. Signed-off-by:
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David Howells authored
Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing dentry->d_inode as the dentry may cover another layer that has an inode when the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout. Signed-off-by:
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David Howells authored
mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and should avoid file_inode() also since it is really dealing with the path. Signed-off-by:
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David Howells authored
Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and socket files). d_is_reg() and d_is_special() are added to detect these subtypes and d_is_file() is left as the union of the two. This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to use d_is_reg(dentry) instead. Signed-off-by:
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David Howells authored
Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is a virtual dentry that covers another one in a lower layer that should be used instead. This may be recorded on medium if directory integration is stored there. The flag can be set with d_set_fallthru() and tested with d_is_fallthru(). Original-author: Valerie Aurora <vaurora@redhat.com> Signed-off-by:
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David Howells authored
Add DCACHE_WHITEOUT_TYPE and provide a d_is_whiteout() accessor function. A d_is_miss() accessor is also added for ordinary cache misses and d_is_negative() is modified to indicate either an ordinary miss or an enforced miss (whiteout). Signed-off-by:
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