Only one user of STATUS_CHECK() remains, and the code can actually be
made more legible by simply avoiding the use of that wrapper macro,
allowing to also drop the macro altogether.
Do so.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-10-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need for using the ternary if/else here, simply mask
TCPC_ALERT_RX_BUF_OVF as necessary, which arguably makes the code
easier to read.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-9-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This makes it easier to see what's missing and what's being programmed.
While at it, add brackets to help with formatting and remove a comment
that doesn't add much value.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-8-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert all fields from register TCPC_TRANSMIT to using GENMASK() and
FIELD_PREP() so as to keep using a similar approach throughout the code
base and make it arguably easier to read.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-7-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert field TCPC_MSG_HDR_INFO_REV from register TCPC_MSG_HDR_INFO to
using GENMASK() and FIELD_PREP() so as to keep using a similar approach
for all fields.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-6-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Align the last remaining field TCPC_ROLE_CTRL_RP_VAL with the other
fields in the TCPC_ROLE_CTRL register by using GENMASK() and
FIELD_PREP().
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-5-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All this open-coded shifting and masking is quite hard to read, in
particular the if-statement in tcpci_apply_rc().
Declare TCPC_ROLE_CTRL_CC[12] using GENMASK() which allows using
FIELD_GET() and FIELD_PREP() to arguably make the code more legible.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-4-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The existing code here, particularly in maxim_contaminant.c, is
arguably quite hard to read due to the open-coded masking and shifting
spanning multiple lines.
Use GENMASK() and FIELD_GET() instead, which arguably make the code
much easier to follow.
While at it, use the symbolic name TCPC_CC_STATE_SRC_OPEN for one
instance of open-coded 0x0.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-3-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We loop while the status is != 0, so rephrase the comment slightly for
clarity.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-2-0ec1f41f4263@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function returns with the ppm_lock held if the PPM is
busy or there's an error.
Reported-and-tested-by: Luciano Coelho <luciano.coelho@intel.com>
Fixes: 5e9c1662a8 ("usb: typec: ucsi: rework command execution functions")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reported-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20240806112029.2984319-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since commit (122968f8dd usb: typec: tcpm: avoid resets for missing
source capability messages), state will change from SNK_WAIT_CAPABILITIES
to SNK_WAIT_CAPABILITIES_TIMEOUT. We need to change SNK_WAIT_CAPABILITIES
-> SNK_READY path to SNK_WAIT_CAPABILITIES_TIMEOUT -> SNK_READY
accordingly. Otherwise, the sink port will never change to SNK_READY state
if the source does't have PD capability.
[ 503.547183] pending state change SNK_WAIT_CAPABILITIES -> SNK_WAIT_CAPABILITIES_TIMEOUT @ 310 ms [rev3 NONE_AMS]
[ 503.857239] state change SNK_WAIT_CAPABILITIES -> SNK_WAIT_CAPABILITIES_TIMEOUT [delayed 310 ms]
[ 503.857254] PD TX, header: 0x87
[ 503.862440] PD TX complete, status: 2
[ 503.862484] state change SNK_WAIT_CAPABILITIES_TIMEOUT -> SNK_UNATTACHED [rev3 NONE_AMS]
Fixes: 122968f8dd ("usb: typec: tcpm: avoid resets for missing source capability messages")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20240802064156.1846768-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This code has an integer overflow or sign extension bug which was caught
by gcc-13:
kernel/sched/debug.c:341:57: error: integer overflow in expression of
type 'long int' results in '-100663296' [-Werror=overflow]
341 | static unsigned long fair_server_period_max = (1 << 22) * NSEC_PER_USEC; /* ~4 seconds */
The result is that "fair_server_period_max" is set to 0xfffffffffa000000
(585 years) instead of instead of 0xfa000000 (4 seconds) that was
intended.
Fix this by changing the type to shift from (1 << 22) to (1UL << 22).
Closes: https://lore.kernel.org/all/CA+G9fYtE2GAbeqU+AOCffgo2oH0RTJUxU+=Pi3cFn4di_KgBAQ@mail.gmail.com/
Fixes: d741f297bc ("sched/fair: Fair server interface")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-by: Arnd Bergmann <arnd@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/a936b991-e464-4bdf-94ab-08e25d364986@stanley.mountain
balance_fair() skips newidle balancing if rq->nr_running - there are already
tasks on the rq, so no need to try to pull tasks. This tests the total
number of queued tasks on the CPU instead of only the fair class, but is
still correct as the rq can currently only have fair class tasks while
balance_fair() is running.
However, with the addition of sched_ext below the fair class, this will not
hold anymore and make put_prev_task_balance() skip sched_ext's balance()
incorrectly as, when a CPU has only lower priority class tasks,
rq->nr_running would still be positive and balance_fair() would return 1
even when fair doesn't have any tasks to run.
Update balance_fair() to use sched_fair_runnable() which tests
rq->cfs.nr_running which is updated by bandwidth throttling. Note that
pick_next_task_fair() already uses sched_fair_runnable() in its optimized
path for the same purpose.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lore.kernel.org/r/ZrFUjlCf7x3TNXB8@slm.duckdns.org
The ``alt`` parameter was used as a way to differentiate between
f->disable() and f->set_alt(). As the code paths diverge quite a bit,
pull out the f->disable() code from ffs_func_set_alt(), everything will
become clearer and less error prone. No change in functionality
intended.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240802140428.2000312-3-tudor.ambarus@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The blamed commit made ffs_func_disable() always return -EINVAL as the
method calls ffs_func_set_alt() with the ``alt`` argument being
``(unsigned)-1``, which is always greater than MAX_ALT_SETTINGS.
Use the MAX_ALT_SETTINGS check just in the f->set_alt() code path,
f->disable() doesn't care about the ``alt`` parameter.
Make a surgical fix, but really the f->disable() code shall be pulled
out from ffs_func_set_alt(), the code will become clearer. A patch will
follow.
Note that ffs_func_disable() always returning -EINVAL made pixel6 crash
on USB disconnect.
Fixes: 2f550553e2 ("usb: gadget: f_fs: Add the missing get_alt callback")
Cc: stable <stable@kernel.org>
Reported-by: William McVicker <willmcvicker@google.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240802140428.2000312-2-tudor.ambarus@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here's a fix for an issue when using the usb_debug driver with Xen.
This change has been in linux-next for a couple of days with no reported
issues.
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Merge tag 'usb-serial-6.11-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fix for 6.11-rc2
Here's a fix for an issue when using the usb_debug driver with Xen.
This change has been in linux-next for a couple of days with no reported
issues.
* tag 'usb-serial-6.11-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: debug: do not echo input by default
The kvm_hypercall() set for LoongArch is limited to a1-a5. So the
mention of a6 in the comment is undefined that needs to be rectified.
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: Dandan Zhang <zhangdandan@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
As very well explained in commit 20a004e7b0 ("arm64: mm: Use
READ_ONCE/WRITE_ONCE when accessing page tables"), an architecture whose
page table walker can modify the PTE in parallel must use READ_ONCE()/
WRITE_ONCE() macro to avoid any compiler transformation.
So apply that to LoongArch which is such an architecture, in order to
avoid potential problems.
Similar to commit edf9556472 ("riscv: Use accessors to page table
entries instead of direct dereference").
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
efi_shutdown_init() can register a general sys_off handler named
efi_power_off(). Enable this by providing efi_poweroff_required(),
like arm and x86. Since EFI poweroff is also supported on LoongArch,
and the enablement makes the poweroff function usable for hardwares
which lack ACPI S5.
We prefer ACPI poweroff rather than EFI poweroff (like x86), so we only
require EFI poweroff if acpi_gbl_reduced_hardware or acpi_no_s5 is true.
Cc: stable@vger.kernel.org
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Matthew Wilcox (Oracle) <willy@infradead.org> says:
On top of the ufs, minix, sysv and qnx6 directory handling patches, this
patch series converts us to using folios for write_begin and write_end.
That's the last mention of 'struct page' in several filesystems.
* work.write.end: (54 commits)
buffer: Convert __block_write_begin() to take a folio
ocfs2: Convert ocfs2_write_zero_page to use a folio
fs: Convert aops->write_begin to take a folio
fs: Convert aops->write_end to take a folio
vboxsf: Use a folio in vboxsf_write_end()
orangefs: Convert orangefs_write_begin() to use a folio
orangefs: Convert orangefs_write_end() to use a folio
jffs2: Convert jffs2_write_begin() to use a folio
jffs2: Convert jffs2_write_end() to use a folio
hostfs: Convert hostfs_write_end() to use a folio
fuse: Convert fuse_write_begin() to use a folio
fuse: Convert fuse_write_end() to use a folio
f2fs: Convert f2fs_write_begin() to use a folio
f2fs: Convert f2fs_write_end() to use a folio
ecryptfs: Use a folio in ecryptfs_write_begin()
ecryptfs: Convert ecryptfs_write_end() to use a folio
buffer: Convert block_write_end() to take a folio
ntfs3: Remove reset_log_file()
nilfs2: Use a folio in nilfs_recover_dsync_blocks()
buffer: Use a folio in generic_write_end()
...
Link: https://lore.kernel.org/r/20240717154716.237943-1-willy@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Almost all callers have a folio now, so change __block_write_begin()
to take a folio and remove a call to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Removes a conversion of folio to page, and then two hidden conversions
of page back to folio.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert all callers from working on a page to working on one page
of a folio (support for working on an entire folio can come later).
Removes a lot of folio->page->folio conversions.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Most callers have a folio, and most implementations operate on a folio,
so remove the conversion from folio->page->folio to fit through this
interface.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Because we have to kmap() the page before calling vboxsf_write(), we
can't entirely remove the use of struct page. But we can eliminate some
uses of old APIs and remove some unnecessary calls to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Retrieve a folio from the page cache instead of a page. This
function was previously mostly converted to use a folio, so it's
a fairly small change.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces five calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Fetch a folio from the page cache instead of a page and use it throughout
removing several calls to compound_head(). We still have to convert
back to a page for calling internal jffs2 functions, but hopefully they
will be converted soon.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces six calls to compound_head() with one.
Also use kmap_local instead of kmap.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces four calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Fetch a folio from the page cache instead of a page and use it throughout
removing several calls to compound_head() and supporting large folios
(in this function). We still have to convert back to a page for calling
internal fuse functions, but hopefully they will be converted soon.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces five calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Fetch a folio from the page cache instead of a page and use it
throughout. We still have to convert back to a page for calling
internal f2fs functions, but hopefully they will be converted soon.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces five calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Use __filemap_get_folio() instead of grab_cache_page_write_begin()
and use the folio throughout. No attempt is made here to support
large folios, simply converting this function to use folio APIs is
the goal. Saves many hidden calls to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Convert the passed page to a folio and operate on that.
Replaces four calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
All callers now have a folio, so pass it in instead of converting
from a folio to a page and back to a folio again. Saves a call
to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This function has no callers (which will be why nobody noticed that
the page wasn't being unlocked).
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Replaces four hidden calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Replaces two implicit calls to compound_head() with one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Replaces two hidden calls to compound_head() with one explicit one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Remove a few calls to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Removes a call to grab_cache_page() and a few hidden calls to
compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Use the folio APIs to retrieve the folio from the page cache and
manipulate it. Saves a few conversions between pages & folios.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
All callers now have a folio, so pass it in. Saves a call to
compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
All callers now have a folio, so convert minix_prepare_chunk() to
take one.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Removes a few hidden calls to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Match ext2 and remove a few hidden calls to compound_head().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
