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W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add a description to Wangxun's common code lib.
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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From looking at the PCI IDs, every device supported by intelfb is
also supported by i915. Anyone still using intelfb should please
move on to i915, which does everything intelfb does but better.
Removing intelfb is motivated by the driver's excessive use of the
global screen_info state. The state belongs to architecture and
firmware code; device drivers should not attempt to access it. But
fixing intelfb would require a significant change in the driver's
probing logic. As intelfb has been obsolete for nearly 2 decades,
it is probably not worth the effort. Let's just remove it. Also
remove the related documentation.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Maik Broemme <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Do not clear the global instance of screen_info. If necessary, clearing
fields in screen_info should be done by architecture or firmware code
that maintains the firmware framebuffer.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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After consuming the global screen_info_state in sysfb_init(), the
created platform device maintains the firmware framebuffer. Clear
screen_info to avoid conflicting access. Subsequent kexec reboots
now ignore the firmware framebuffer.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Replace use of screen_info state with the correct interfaces from
the aperture helpers. The state is only for architecture and firmware
code. It is not guaranteed to contain valid data. Drivers are thus
not allowed to use it.
For removing conflicting firmware framebuffers, there are aperture
helpers. Hence replace screen_info with the correct functions that will
remove conflicting framebuffers for the hypervfb driver. For GEN1 PCI
devices, the driver reads the framebuffer base and size from the PCI
BAR, and uses the range for removing the firmware framebuffer. For
GEN2 VMBUS devices no range can be detected, so the driver clears all
firmware framebuffers.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Replace use of screen_info state with the correct interface from
the aperture helpers. The state is only for architecture and firmware
code. It is not guaranteed to contain valid data. Drivers are thus
not allowed to use it.
For removing conflicting firmware framebuffers, there are aperture
helpers. Hence replace screen_info with the correct function that will
remove conflicting framebuffers for the hyperv-drm driver. Also
move the call to the correct place within the driver.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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When built-in, the sis driver tries to detect the current display mode
from the global screen_info state. That state is only for architecture
and firmware code. Drivers should not use it directly as it's not
guaranteed to contain valid information.
Remove the mode-detection code from sis. Drivers that want to detect a
pre-set mode on probe should read the hardware registers directly.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Currently the %d format specifier is being used for unsigned int values.
Fix this by using the correct %u format specifier. Cleans up cppcheck
warnings:
warning: %d in format string (no. 1) requires 'int' but the argument
type is 'unsigned int'. [invalidPrintfArgType_sint]
Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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The info field in struct sti_struct was used to detect the default
display device. That test is now done with the respective Linux device
and the info field is unused. Remove it.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Update fb_is_primary device() on parisc to detect the primary display
device from the Linux device instance. Aligns the code with the other
architectures. A later patch will remove the fbdev dependency from the
function's interface.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Allocate stifb's instance of fb_info with framebuffer_alloc(). This
is the preferred way of creating fb_info with associated driver data
stored in struct fb_info.par. Requires several, but minor, changes
through out the driver's code.
The intended side effect of this patch is that the new instance of
struct fb_info now has its device field correctly set to the parent
device of the STI ROM. A later patch can detect if the device is the
firmware's primary output. It is also now correctly located within
the Linux device hierarchy.
Signed-off-by: Thomas Zimmermann <[email protected]>
Tested-by: Helge Deller <[email protected]>
Reviewed-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Store the ROM's parent device in each STI struct, so we can associate
the STI framebuffer with a device.
The new field will eventually replace the fbdev subsystem's info field,
which the function fb_is_primary_device() currently requires to detect
the firmware's output. By using the device instead of the framebuffer
info, a later patch can generalize the helper for use in non-fbdev code.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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When framebuffer gets closed, the queued deferred IO gets cancelled. This
can cause some last display data to vanish. This is problematic for users
who send a still image to the framebuffer, then close the file: the image
may never appear.
To ensure none of display data get lost, flush the queued deferred IO
first before closing.
Another possible solution is to delete the cancel_delayed_work_sync()
instead. The difference is that the display may appear some time after
closing. However, the clearing of page mapping after this needs to be
removed too, because the page mapping is used by the deferred work. It is
not completely obvious whether it is okay to not clear the page mapping.
For a patch intended for stable trees, go with the simple and obvious
solution.
Fixes: 60b59beafba8 ("fbdev: mm: Deferred IO support")
Cc: [email protected]
Signed-off-by: Nam Cao <[email protected]>
Reviewed-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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The driver's fsync() is supposed to flush any pending operation to
hardware. It is implemented in this driver by cancelling the queued
deferred IO first, then schedule it for "immediate execution" by calling
schedule_delayed_work() again with delay=0. However, setting delay=0
only means the work is scheduled immediately, it does not mean the work
is executed immediately. There is no guarantee that the work is finished
after schedule_delayed_work() returns. After this driver's fsync()
returns, there can still be pending work. Furthermore, if close() is
called by users immediately after fsync(), the pending work gets
cancelled and fsync() may do nothing.
To ensure that the deferred IO completes, use flush_delayed_work()
instead. Write operations to this driver either write to the device
directly, or invoke schedule_delayed_work(); so by flushing the
workqueue, it can be guaranteed that all previous writes make it to the
device.
Fixes: 5e841b88d23d ("fb: fsync() method for deferred I/O flush.")
Cc: [email protected]
Signed-off-by: Nam Cao <[email protected]>
Reviewed-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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We have managed to ascertain that all users of the old FBDEV
code that are out of tree are now gone.
The new DRM driver can be found in drivers/gpu/drm/pl111/.
The remaining out of tree user was the ARM FVP emulation
platform, running Android. Thanks to changes in Android
versions 13 and 14, Android can now use the DRM driver when
being emulated under FVP. Some final patches are being put
in place to make it fully featured.
This is essentially a revert of the partial revert in
commit 112c35237c72 ("Partially revert "video: fbdev: amba-clcd: Retire elder CLCD driver"")
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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As far as anybody can tell, this product never shipped. If it did,
it shipped in 2007 and nobody has access to one any more. Remove the
fbdev driver and the backlight driver.
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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The RZ/G3S SMARC Module has 2 KSZ9131 PHYs. In this setup, the KSZ9131 PHY
is used with the ravb Ethernet driver. It has been discovered that when
bringing the Ethernet interface down/up continuously, e.g., with the
following sh script:
$ while :; do ifconfig eth0 down; ifconfig eth0 up; done
the link speed and duplex are wrong after interrupting the bring down/up
operation even though the Ethernet interface is up. To recover from this
state the following configuration sequence is necessary (executed
manually):
$ ifconfig eth0 down
$ ifconfig eth0 up
The behavior has been identified also on the Microchip SAMA7G5-EK board
which runs the macb driver and uses the same PHY.
The order of PHY-related operations in ravb_open() is as follows:
ravb_open() ->
ravb_phy_start() ->
ravb_phy_init() ->
of_phy_connect() ->
phy_connect_direct() ->
phy_attach_direct() ->
phy_init_hw() ->
phydev->drv->soft_reset()
phydev->drv->config_init()
phydev->drv->config_intr()
phy_resume()
kszphy_resume()
The order of PHY-related operations in ravb_close is as follows:
ravb_close() ->
phy_stop() ->
phy_suspend() ->
kszphy_suspend() ->
genphy_suspend()
// set BMCR_PDOWN bit in MII_BMCR
In genphy_suspend() setting the BMCR_PDWN bit in MII_BMCR switches the PHY
to Software Power-Down (SPD) mode (according to the KSZ9131 datasheet).
Thus, when opening the interface after it has been previously closed (via
ravb_close()), the phydev->drv->config_init() and
phydev->drv->config_intr() reach the KSZ9131 PHY driver via the
ksz9131_config_init() and kszphy_config_intr() functions.
KSZ9131 specifies that the MII management interface remains operational
during SPD (Software Power-Down), but (according to manual):
- Only access to the standard registers (0 through 31) is supported.
- Access to MMD address spaces other than MMD address space 1 is possible
if the spd_clock_gate_override bit is set.
- Access to MMD address space 1 is not possible.
The spd_clock_gate_override bit is not used in the KSZ9131 driver.
ksz9131_config_init() configures RGMII delay, pad skews and LEDs by
accessesing MMD registers other than those in address space 1.
The datasheet for the KSZ9131 does not specify what happens if registers
from an unsupported address space are accessed while the PHY is in SPD.
To fix the issue the .soft_reset method has been instantiated for KSZ9131,
too. This resets the PHY to the default state before doing any
configurations to it, thus switching it out of SPD.
Fixes: bff5b4b37372 ("net: phy: micrel: add Microchip KSZ9131 initial driver")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Maxime Chevallier <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The HW has the capability to check each frame if it is a PTP frame,
which domain it is, which ptp frame type it is, different ip address in
the frame. And if one of these checks fail then the frame is not
timestamp. Most of these checks were disabled except checking the field
minorVersionPTP inside the PTP header. Meaning that once a partner sends
a frame compliant to 8021AS which has minorVersionPTP set to 1, then the
frame was not timestamp because the HW expected by default a value of 0
in minorVersionPTP.
Fix this issue by removing this check so the userspace can decide on this.
Fixes: cafc3662ee3f ("net: micrel: Add PHC support for lan8841")
Signed-off-by: Horatiu Vultur <[email protected]>
Reviewed-by: Divya Koppera <[email protected]>
Reviewed-by: Rahul Rameshbabu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs update from Jaegeuk Kim:
"In this series, we've some progress to support Zoned block device
regarding to the power-cut recovery flow and enabling
checkpoint=disable feature which is essential for Android OTA.
Other than that, some patches touched sysfs entries and tracepoints
which are minor, while several bug fixes on error handlers and
compression flows are good to improve the overall stability.
Enhancements:
- enable checkpoint=disable for zoned block device
- sysfs entries such as discard status, discard_io_aware, dir_level
- tracepoints such as f2fs_vm_page_mkwrite(), f2fs_rename(),
f2fs_new_inode()
- use shared inode lock during f2fs_fiemap() and f2fs_seek_block()
Bug fixes:
- address some power-cut recovery issues on zoned block device
- handle errors and logics on do_garbage_collect(),
f2fs_reserve_new_block(), f2fs_move_file_range(),
f2fs_recover_xattr_data()
- don't set FI_PREALLOCATED_ALL for partial write
- fix to update iostat correctly in f2fs_filemap_fault()
- fix to wait on block writeback for post_read case
- fix to tag gcing flag on page during block migration
- restrict max filesize for 16K f2fs
- fix to avoid dirent corruption
- explicitly null-terminate the xattr list
There are also several clean-up patches to remove dead codes and
better readability"
* tag 'f2fs-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (33 commits)
f2fs: show more discard status by sysfs
f2fs: Add error handling for negative returns from do_garbage_collect
f2fs: Constrain the modification range of dir_level in the sysfs
f2fs: Use wait_event_freezable_timeout() for freezable kthread
f2fs: fix to check return value of f2fs_recover_xattr_data
f2fs: don't set FI_PREALLOCATED_ALL for partial write
f2fs: fix to update iostat correctly in f2fs_filemap_fault()
f2fs: fix to check compress file in f2fs_move_file_range()
f2fs: fix to wait on block writeback for post_read case
f2fs: fix to tag gcing flag on page during block migration
f2fs: add tracepoint for f2fs_vm_page_mkwrite()
f2fs: introduce f2fs_invalidate_internal_cache() for cleanup
f2fs: update blkaddr in __set_data_blkaddr() for cleanup
f2fs: introduce get_dnode_addr() to clean up codes
f2fs: delete obsolete FI_DROP_CACHE
f2fs: delete obsolete FI_FIRST_BLOCK_WRITTEN
f2fs: Restrict max filesize for 16K f2fs
f2fs: let's finish or reset zones all the time
f2fs: check write pointers when checkpoint=disable
f2fs: fix write pointers on zoned device after roll forward
...
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Pull smb server updates from Steve French:
- memory allocation fix
- three lease fixes, including important rename fix
- read only share fix
- thread freeze fix
- three cleanup fixes (two kernel doc related)
- locking fix in setting EAs
- packet header validation fix
* tag '6.8-rc-smb-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: Add missing set_freezable() for freezable kthread
ksmbd: free ppace array on error in parse_dacl
ksmbd: send lease break notification on FILE_RENAME_INFORMATION
ksmbd: don't allow O_TRUNC open on read-only share
ksmbd: vfs: fix all kernel-doc warnings
ksmbd: auth: fix most kernel-doc warnings
ksmbd: Remove usage of the deprecated ida_simple_xx() API
ksmbd: don't increment epoch if current state and request state are same
ksmbd: fix potential circular locking issue in smb2_set_ea()
ksmbd: set v2 lease version on lease upgrade
ksmbd: validate the zero field of packet header
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Pull misc filesystem updates from Al Viro:
"Misc cleanups (the part that hadn't been picked by individual fs
trees)"
* tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
apparmorfs: don't duplicate kfree_link()
orangefs: saner arguments passing in readdir guts
ocfs2_find_match(): there's no such thing as NULL or negative ->d_parent
reiserfs_add_entry(): get rid of pointless namelen checks
__ocfs2_add_entry(), ocfs2_prepare_dir_for_insert(): namelen checks
ext4_add_entry(): ->d_name.len is never 0
befs: d_obtain_alias(ERR_PTR(...)) will do the right thing
affs: d_obtain_alias(ERR_PTR(...)) will do the right thing
/proc/sys: use d_splice_alias() calling conventions to simplify failure exits
hostfs: use d_splice_alias() calling conventions to simplify failure exits
udf_fiiter_add_entry(): check for zero ->d_name.len is bogus...
udf: d_obtain_alias(ERR_PTR(...)) will do the right thing...
udf: d_splice_alias() will do the right thing on ERR_PTR() inode
nfsd: kill stale comment about simple_fill_super() requirements
bfs_add_entry(): get rid of pointless ->d_name.len checks
nilfs2: d_obtain_alias(ERR_PTR(...)) will do the right thing...
zonefs: d_splice_alias() will do the right thing on ERR_PTR() inode
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull dcache updates from Al Viro:
"Change of locking rules for __dentry_kill(), regularized refcounting
rules in that area, assorted cleanups and removal of weird corner
cases (e.g. now ->d_iput() on child is always called before the parent
might hit __dentry_kill(), etc)"
* tag 'pull-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
dcache: remove unnecessary NULL check in dget_dlock()
kill DCACHE_MAY_FREE
__d_unalias() doesn't use inode argument
d_alloc_parallel(): in-lookup hash insertion doesn't need an RCU variant
get rid of DCACHE_GENOCIDE
d_genocide(): move the extern into fs/internal.h
simple_fill_super(): don't bother with d_genocide() on failure
nsfs: use d_make_root()
d_alloc_pseudo(): move setting ->d_op there from the (sole) caller
kill d_instantate_anon(), fold __d_instantiate_anon() into remaining caller
retain_dentry(): introduce a trimmed-down lockless variant
__dentry_kill(): new locking scheme
d_prune_aliases(): use a shrink list
switch select_collect{,2}() to use of to_shrink_list()
to_shrink_list(): call only if refcount is 0
fold dentry_kill() into dput()
don't try to cut corners in shrink_lock_dentry()
fold the call of retain_dentry() into fast_dput()
Call retain_dentry() with refcount 0
dentry_kill(): don't bother with retain_dentry() on slow path
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull rename updates from Al Viro:
"Fix directory locking scheme on rename
This was broken in 6.5; we really can't lock two unrelated directories
without holding ->s_vfs_rename_mutex first and in case of same-parent
rename of a subdirectory 6.5 ends up doing just that"
* tag 'pull-rename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
rename(): avoid a deadlock in the case of parents having no common ancestor
kill lock_two_inodes()
rename(): fix the locking of subdirectories
f2fs: Avoid reading renamed directory if parent does not change
ext4: don't access the source subdirectory content on same-directory rename
ext2: Avoid reading renamed directory if parent does not change
udf_rename(): only access the child content on cross-directory rename
ocfs2: Avoid touching renamed directory if parent does not change
reiserfs: Avoid touching renamed directory if parent does not change
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Pull minixfs updates from Al Viro:
"minixfs kmap_local_page() switchover and related fixes - very similar
to sysv series"
* tag 'pull-minix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
minixfs: switch to kmap_local_page()
minixfs: Use dir_put_page() in minix_unlink() and minix_rename()
minixfs: change the signature of dir_get_page()
minixfs: use offset_in_page()
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Pull documentation update from Jonathan Corbet:
"Another moderately busy cycle for documentation, including:
- The minimum Sphinx requirement has been raised to 2.4.4, following
a warning that was added in 6.2
- Some reworking of the Documentation/process front page to,
hopefully, make it more useful
- Various kernel-doc tweaks to, for example, make it deal properly
with __counted_by annotations
- We have also restored a warning for documentation of nonexistent
structure members that disappeared a while back. That had the
delightful consequence of adding some 600 warnings to the docs
build. A sustained effort by Randy, Vegard, and myself has
addressed almost all of those, bringing the documentation back into
sync with the code. The fixes are going through the appropriate
maintainer trees
- Various improvements to the HTML rendered docs, including automatic
links to Git revisions and a nice new pulldown to make translations
easy to access
- Speaking of translations, more of those for Spanish and Chinese
... plus the usual stream of documentation updates and typo fixes"
* tag 'docs-6.8' of git://git.lwn.net/linux: (57 commits)
MAINTAINERS: use tabs for indent of CONFIDENTIAL COMPUTING THREAT MODEL
A reworked process/index.rst
ring-buffer/Documentation: Add documentation on buffer_percent file
Translated the RISC-V architecture boot documentation.
Docs: remove mentions of fdformat from util-linux
Docs/zh_CN: Fix the meaning of DEBUG to pr_debug()
Documentation: move driver-api/dcdbas to userspace-api/
Documentation: move driver-api/isapnp to userspace-api/
Documentation/core-api : fix typo in workqueue
Documentation/trace: Fixed typos in the ftrace FLAGS section
kernel-doc: handle a void function without producing a warning
scripts/get_abi.pl: ignore some temp files
docs: kernel_abi.py: fix command injection
scripts/get_abi: fix source path leak
CREDITS, MAINTAINERS, docs/process/howto: Update man-pages' maintainer
docs: translations: add translations links when they exist
kernel-doc: Align quick help and the code
MAINTAINERS: add reviewer for Spanish translations
docs: ignore __counted_by attribute in structure definitions
scripts: kernel-doc: Clarify missing struct member description
..
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The kernel doesn't use features of the FDPIC toolchain, disable FDPIC
code generation when using such toolchain and select ordinary ELF linker
emulation.
Signed-off-by: Max Filippov <[email protected]>
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amt driver uses skb->cb for storing tunnel information.
This job is worked before TC layer and then amt driver load tunnel info
from skb->cb after TC layer.
So, its cb area should not be overwrapped with CB area used by TC.
In order to not use cb area used by TC, it skips the biggest cb
structure used by TC, which was qdisc_skb_cb.
But it's not anymore.
Currently, biggest structure of TC's CB is tc_skb_cb.
So, it should skip size of tc_skb_cb instead of qdisc_skb_cb.
Fixes: ec624fe740b4 ("net/sched: Extend qdisc control block with tc control block")
Signed-off-by: Taehee Yoo <[email protected]>
Acked-by: Paolo Abeni <[email protected]>
Reviewed-by: Jamal Hadi Salim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Sanjuán García, Jorge says:
====================
net: ethernet: ti: am65-cpsw: Allow for MTU values
The am65-cpsw-nuss driver has a fixed definition for the maximum ethernet
frame length of 1522 bytes (AM65_CPSW_MAX_PACKET_SIZE). This limits the switch
ports to only operate at a maximum MTU of 1500 bytes. When combining this CPSW
switch with a DSA switch connected to one of its ports this limitation shows up.
The extra 8 bytes the DSA subsystem adds internally to the ethernet frame
create resulting frames bigger than 1522 bytes (1518 for non VLAN + 8 for DSA
stuff) so they get dropped by the switch.
One of the issues with the the am65-cpsw-nuss driver is that the network device
max_mtu was being set to the same fixed value defined for the max total frame
length (1522 bytes). This makes the DSA subsystem believe that the MTU of the
interface can be set to 1508 bytes to make room for the extra 8 bytes of the DSA
headers. However, all packages created assuming the 1500 bytes payload get
dropped by the switch as oversized.
This series offers a solution to this problem. The max_mtu advertised on the
network device and the actual max frame size configured on the switch registers
are made consistent by letting the extra room needed for the ethernet headers
and the frame checksum (22 bytes including VLAN).
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The value of AM65_CPSW_MAX_PACKET_SIZE represents the maximum length
of a received frame. This value is written to the register
AM65_CPSW_PORT_REG_RX_MAXLEN.
The maximum MTU configured on the network device should then leave
some room for the ethernet headers and frame check. Otherwise, if
the network interface is configured to its maximum mtu possible,
the frames will be larger than AM65_CPSW_MAX_PACKET_SIZE and will
get dropped as oversized.
The switch supports ethernet frame sizes between 64 and 2024 bytes
(including VLAN) as stated in the technical reference manual, so
define AM65_CPSW_MAX_PACKET_SIZE with that maximum size.
Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Jorge Sanjuan Garcia <[email protected]>
Reviewed-by: Horatiu Vultur <[email protected]>
Reviewed-by: Siddharth Vadapalli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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region of size 10" warnings
Fix the warnings when building virtio_net driver.
"
drivers/net/virtio_net.c: In function ‘init_vqs’:
drivers/net/virtio_net.c:4551:48: warning: ‘%d’ directive writing between 1 and 11 bytes into a region of size 10 [-Wformat-overflow=]
4551 | sprintf(vi->rq[i].name, "input.%d", i);
| ^~
In function ‘virtnet_find_vqs’,
inlined from ‘init_vqs’ at drivers/net/virtio_net.c:4645:8:
drivers/net/virtio_net.c:4551:41: note: directive argument in the range [-2147483643, 65534]
4551 | sprintf(vi->rq[i].name, "input.%d", i);
| ^~~~~~~~~~
drivers/net/virtio_net.c:4551:17: note: ‘sprintf’ output between 8 and 18 bytes into a destination of size 16
4551 | sprintf(vi->rq[i].name, "input.%d", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/virtio_net.c: In function ‘init_vqs’:
drivers/net/virtio_net.c:4552:49: warning: ‘%d’ directive writing between 1 and 11 bytes into a region of size 9 [-Wformat-overflow=]
4552 | sprintf(vi->sq[i].name, "output.%d", i);
| ^~
In function ‘virtnet_find_vqs’,
inlined from ‘init_vqs’ at drivers/net/virtio_net.c:4645:8:
drivers/net/virtio_net.c:4552:41: note: directive argument in the range [-2147483643, 65534]
4552 | sprintf(vi->sq[i].name, "output.%d", i);
| ^~~~~~~~~~~
drivers/net/virtio_net.c:4552:17: note: ‘sprintf’ output between 9 and 19 bytes into a destination of size 16
4552 | sprintf(vi->sq[i].name, "output.%d", i);
"
Reviewed-by: Xuan Zhuo <[email protected]>
Signed-off-by: Zhu Yanjun <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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RPM0 and RPM1 on the CN10KB SoC have 8 LMACs each, whereas RPM2
has only 4 LMACs. Similarly, the RPM0 and RPM1 have 256KB FIFO,
whereas RPM2 has 128KB FIFO. This patch fixes an issue with
improper TX credit programming for the RPM2 link.
Fixes: b9d0fedc6234 ("octeontx2-af: cn10kb: Add RPM_USX MAC support")
Signed-off-by: Nithin Dabilpuram <[email protected]>
Signed-off-by: Naveen Mamindlapalli <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Nicolas Dichtel says:
====================
rtnetlink: allow to enslave with one msg an up interface
The first patch fixes a regression, introduced in linux v6.1, by reverting
a patch. The second patch adds a test to verify this API.
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
The goal is to check the following two sequences:
> ip link set dummy0 up
> ip link set dummy0 master bond0 down
Signed-off-by: Nicolas Dichtel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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This reverts commit a4abfa627c3865c37e036bccb681619a50d3d93c.
The patch broke:
> ip link set dummy0 up
> ip link set dummy0 master bond0 down
This last command is useful to be able to enslave an interface with only
one netlink message.
After discussion, there is no good reason to support:
> ip link set dummy0 down
> ip link set dummy0 master bond0 up
because the bond interface already set the slave up when it is up.
Cc: [email protected]
Fixes: a4abfa627c38 ("net: rtnetlink: Enslave device before bringing it up")
Signed-off-by: Nicolas Dichtel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Reviewed-by: Hangbin Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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rxrpc normally has the Don't Fragment flag set on the UDP packets it
transmits, except when it has decided that DATA packets aren't getting
through - in which case it turns it off just for the DATA transmissions.
This can be a problem, however, for RESPONSE packets that convey
authentication and crypto data from the client to the server as ticket may
be larger than can fit in the MTU.
In such a case, rxrpc gets itself into an infinite loop as the sendmsg
returns an error (EMSGSIZE), which causes rxkad_send_response() to return
-EAGAIN - and the CHALLENGE packet is put back on the Rx queue to retry,
leading to the I/O thread endlessly attempting to perform the transmission.
Fix this by disabling DF on RESPONSE packets for now. The use of DF and
best data MTU determination needs reconsidering at some point in the
future.
Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Reported-by: Marc Dionne <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: [email protected]
Acked-by: Paolo Abeni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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After the blamed commit, we started doing this dereference for every
NETDEV_CHANGEUPPER and NETDEV_PRECHANGEUPPER event in the system.
static inline struct dsa_port *dsa_user_to_port(const struct net_device *dev)
{
struct dsa_user_priv *p = netdev_priv(dev);
return p->dp;
}
Which is obviously bogus, because not all net_devices have a netdev_priv()
of type struct dsa_user_priv. But struct dsa_user_priv is fairly small,
and p->dp means dereferencing 8 bytes starting with offset 16. Most
drivers allocate that much private memory anyway, making our access not
fault, and we discard the bogus data quickly afterwards, so this wasn't
caught.
But the dummy interface is somewhat special in that it calls
alloc_netdev() with a priv size of 0. So every netdev_priv() dereference
is invalid, and we get this when we emit a NETDEV_PRECHANGEUPPER event
with a VLAN as its new upper:
$ ip link add dummy1 type dummy
$ ip link add link dummy1 name dummy1.100 type vlan id 100
[ 43.309174] ==================================================================
[ 43.316456] BUG: KASAN: slab-out-of-bounds in dsa_user_prechangeupper+0x30/0xe8
[ 43.323835] Read of size 8 at addr ffff3f86481d2990 by task ip/374
[ 43.330058]
[ 43.342436] Call trace:
[ 43.366542] dsa_user_prechangeupper+0x30/0xe8
[ 43.371024] dsa_user_netdevice_event+0xb38/0xee8
[ 43.375768] notifier_call_chain+0xa4/0x210
[ 43.379985] raw_notifier_call_chain+0x24/0x38
[ 43.384464] __netdev_upper_dev_link+0x3ec/0x5d8
[ 43.389120] netdev_upper_dev_link+0x70/0xa8
[ 43.393424] register_vlan_dev+0x1bc/0x310
[ 43.397554] vlan_newlink+0x210/0x248
[ 43.401247] rtnl_newlink+0x9fc/0xe30
[ 43.404942] rtnetlink_rcv_msg+0x378/0x580
Avoid the kernel oops by dereferencing after the type check, as customary.
Fixes: 4c3f80d22b2e ("net: dsa: walk through all changeupper notifier functions")
Reported-and-tested-by: [email protected]
Closes: https://lore.kernel.org/netdev/[email protected]/
Signed-off-by: Vladimir Oltean <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
The variable rmnet_link_ops assign a *bigger* maxtype which leads to a
global out-of-bounds read when parsing the netlink attributes. See bug
trace below:
==================================================================
BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]
BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600
Read of size 1 at addr ffffffff92c438d0 by task syz-executor.6/84207
CPU: 0 PID: 84207 Comm: syz-executor.6 Tainted: G N 6.1.0 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:284 [inline]
print_report+0x172/0x475 mm/kasan/report.c:395
kasan_report+0xbb/0x1c0 mm/kasan/report.c:495
validate_nla lib/nlattr.c:386 [inline]
__nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600
__nla_parse+0x3e/0x50 lib/nlattr.c:697
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
__rtnl_newlink+0x50a/0x1880 net/core/rtnetlink.c:3485
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3594
rtnetlink_rcv_msg+0x43c/0xd70 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0x154/0x190 net/socket.c:734
____sys_sendmsg+0x6df/0x840 net/socket.c:2482
___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
__sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdcf2072359
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdcf13e3168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdcf219ff80 RCX: 00007fdcf2072359
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007fdcf20bd493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbb8d7bdf R14: 00007fdcf13e3300 R15: 0000000000022000
</TASK>
The buggy address belongs to the variable:
rmnet_policy+0x30/0xe0
The buggy address belongs to the physical page:
page:0000000065bdeb3c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x155243
flags: 0x200000000001000(reserved|node=0|zone=2)
raw: 0200000000001000 ffffea00055490c8 ffffea00055490c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffffff92c43780: f9 f9 f9 f9 00 00 00 02 f9 f9 f9 f9 00 00 00 07
ffffffff92c43800: f9 f9 f9 f9 00 00 00 05 f9 f9 f9 f9 06 f9 f9 f9
>ffffffff92c43880: f9 f9 f9 f9 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
^
ffffffff92c43900: 00 00 00 00 00 00 00 00 07 f9 f9 f9 f9 f9 f9 f9
ffffffff92c43980: 00 00 00 07 f9 f9 f9 f9 00 00 00 05 f9 f9 f9 f9
According to the comment of `nla_parse_nested_deprecated`, the maxtype
should be len(destination array) - 1. Hence use `IFLA_RMNET_MAX` here.
Fixes: 14452ca3b5ce ("net: qualcomm: rmnet: Export mux_id and flags to netlink")
Signed-off-by: Lin Ma <[email protected]>
Reviewed-by: Subash Abhinov Kasiviswanathan <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
The rules to link selftests are:
> $(OUTPUT)/%_ipv4: %.c
> $(LINK.c) $^ $(LDLIBS) -o $@
>
> $(OUTPUT)/%_ipv6: %.c
> $(LINK.c) -DIPV6_TEST $^ $(LDLIBS) -o $@
The intel test robot uses only selftest's Makefile, not the top linux
Makefile:
> make W=1 O=/tmp/kselftest -C tools/testing/selftests
So, $(LINK.c) is determined by environment, rather than by kernel
Makefiles. On my machine (as well as other people that ran tcp-ao
selftests) GNU/Make implicit definition does use $(LDFLAGS):
> [dima@Mindolluin ~]$ make -p -f/dev/null | grep '^LINK.c\>'
> make: *** No targets. Stop.
> LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
But, according to build robot report, it's not the case for them.
While I could just avoid using pre-defined $(LINK.c), it's also used by
selftests/lib.mk by default.
Anyways, according to GNU/Make documentation [1], I should have used
$(LDLIBS) instead of $(LDFLAGS) in the first place, so let's just do it:
> LDFLAGS
> Extra flags to give to compilers when they are supposed to invoke
> the linker, ‘ld’, such as -L. Libraries (-lfoo) should be added
> to the LDLIBS variable instead.
> LDLIBS
> Library flags or names given to compilers when they are supposed
> to invoke the linker, ‘ld’. LOADLIBES is a deprecated (but still
> supported) alternative to LDLIBS. Non-library linker flags, such
> as -L, should go in the LDFLAGS variable.
[1]: https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
Fixes: cfbab37b3da0 ("selftests/net: Add TCP-AO library")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Dmitry Safonov <[email protected]>
Acked-by: Paolo Abeni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
The ngbe driver needs phylink:
arm-linux-gnueabi-ld: drivers/net/ethernet/wangxun/libwx/wx_ethtool.o: in function `wx_nway_reset':
wx_ethtool.c:(.text+0x458): undefined reference to `phylink_ethtool_nway_reset'
arm-linux-gnueabi-ld: drivers/net/ethernet/wangxun/ngbe/ngbe_main.o: in function `ngbe_remove':
ngbe_main.c:(.text+0x7c): undefined reference to `phylink_destroy'
arm-linux-gnueabi-ld: drivers/net/ethernet/wangxun/ngbe/ngbe_main.o: in function `ngbe_open':
ngbe_main.c:(.text+0xf90): undefined reference to `phylink_connect_phy'
arm-linux-gnueabi-ld: drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.o: in function `ngbe_mdio_init':
ngbe_mdio.c:(.text+0x314): undefined reference to `phylink_create'
Add the missing Kconfig description for this.
Fixes: bc2426d74aa3 ("net: ngbe: convert phylib to phylink")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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I missed that Dany uses a different email address
when tagging patches ([email protected])
and asked him if he's still actively working on ibmvnic.
He doesn't really fall under our removal criteria,
but he admitted that he already moved on to other projects.
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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We haven't heard from Ralf for two years, according to lore.
We get a constant stream of "fixes" to ax25 from people using
code analysis tools. Nobody is reviewing those, let's reflect
this reality in MAINTAINERS.
Subsystem AX.25 NETWORK LAYER
Changes 9 / 59 (15%)
(No activity)
Top reviewers:
[2]: [email protected]
[2]: [email protected]
[2]: [email protected]
INACTIVE MAINTAINER Ralf Baechle <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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Johan moved to maintaining the Zephyr Bluetooth stack,
and we haven't heard from him on the ML in 3 years
(according to lore), and seen any tags in git in 4 years.
Trade the MAINTAINER entry for CREDITS, we can revert
whenever Johan comes back to Linux hacking :)
Subsystem BLUETOOTH SUBSYSTEM
Changes 173 / 986 (17%)
Last activity: 2023-12-22
Marcel Holtmann <[email protected]>:
Author 91cb4c19118a 2022-01-27 00:00:00 52
Committer edcb185fa9c4 2022-05-23 00:00:00 446
Tags 000c2fa2c144 2023-04-23 00:00:00 523
Johan Hedberg <[email protected]>:
Luiz Augusto von Dentz <[email protected]>:
Author d03376c18592 2023-12-22 00:00:00 241
Committer da9065caa594 2023-12-22 00:00:00 341
Tags da9065caa594 2023-12-22 00:00:00 493
Top reviewers:
[33]: [email protected]
[31]: [email protected]
[27]: [email protected]
INACTIVE MAINTAINER Johan Hedberg <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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We haven't seen much review activity from the liquidio
maintainers for years. Reflect that reality in MAINTAINERS.
Our scripts report:
Subsystem CAVIUM LIQUIDIO NETWORK DRIVER
Changes 30 / 87 (34%)
Last activity: 2019-01-28
Derek Chickles <[email protected]>:
Tags ac93e2fa8550 2019-01-28 00:00:00 1
Satanand Burla <[email protected]>:
Felix Manlunas <[email protected]>:
Tags ac93e2fa8550 2019-01-28 00:00:00 1
Top reviewers:
[5]: [email protected]
[4]: [email protected]
[4]: [email protected]
INACTIVE MAINTAINER Satanand Burla <[email protected]>
Acked-by: Derek Chickles <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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Thomas is still active in other bits of the kernel and beyond
but not as much on the Marvell Ethernet devices.
Our scripts report:
Subsystem MARVELL MVNETA ETHERNET DRIVER
Changes 54 / 176 (30%)
(No activity)
Top reviewers:
[12]: [email protected]
[9]: [email protected]
[9]: [email protected]
INACTIVE MAINTAINER Thomas Petazzoni <[email protected]>
Acked-by: Thomas Petazzoni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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mt7530 is a pretty active driver and last we have heard
from Landen Chao on the list was March. There were total
of 4 message from them in the last 2.5 years.
I think it's time to move to CREDITS.
Subsystem MEDIATEK SWITCH DRIVER
Changes 94 / 169 (55%)
Last activity: 2023-10-11
Arınç ÜNAL <[email protected]>:
Author e94b590abfff 2023-08-19 00:00:00 12
Tags e94b590abfff 2023-08-19 00:00:00 16
Daniel Golle <[email protected]>:
Author 91daa4f62ce8 2023-04-19 00:00:00 17
Tags ac49b992578d 2023-10-11 00:00:00 20
Landen Chao <[email protected]>:
DENG Qingfang <[email protected]>:
Author 342afce10d6f 2021-10-18 00:00:00 24
Tags 342afce10d6f 2021-10-18 00:00:00 25
Sean Wang <[email protected]>:
Tags c288575f7810 2020-09-14 00:00:00 5
Top reviewers:
[46]: [email protected]
[29]: [email protected]
[19]: [email protected]
INACTIVE MAINTAINER Landen Chao <[email protected]>
Acked-by: Arınç ÜNAL <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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John is still active in other bits of the kernel but not much
on the MediaTek ethernet switch side. Our scripts report:
Subsystem MEDIATEK ETHERNET DRIVER
Changes 81 / 384 (21%)
Last activity: 2023-12-21
Felix Fietkau <[email protected]>:
Author c6d96df9fa2c 2023-05-02 00:00:00 42
Tags c6d96df9fa2c 2023-05-02 00:00:00 48
John Crispin <[email protected]>:
Sean Wang <[email protected]>:
Author 880c2d4b2fdf 2019-06-03 00:00:00 5
Tags a5d75538295b 2020-04-07 00:00:00 7
Mark Lee <[email protected]>:
Author 8d66a8183d0c 2019-11-14 00:00:00 4
Tags 8d66a8183d0c 2019-11-14 00:00:00 4
Lorenzo Bianconi <[email protected]>:
Author 7cb8cd4daacf 2023-12-21 00:00:00 98
Tags 7cb8cd4daacf 2023-12-21 00:00:00 112
Top reviewers:
[18]: [email protected]
[15]: [email protected]
[8]: [email protected]
INACTIVE MAINTAINER John Crispin <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: John Crispin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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Breno Leitao says:
====================
Fix MODULE_DESCRIPTION() for net (p1)
There are hundreds of network modules that misses MODULE_DESCRIPTION(),
causing a warnning when compiling with W=1. Example:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/net/arcnet/com90io.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/net/arcnet/arc-rimi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/net/arcnet/com20020.o
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to the Neterion 10GbE (s2io) driver.
Signed-off-by: Breno Leitao <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to Slic Maxim ds26522 card driver.
Signed-off-by: Breno Leitao <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
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W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to Sun RPC modules.
Signed-off-by: Breno Leitao <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|