Deleted commas in json file #549

ProductiveAsparagus56 · 2018-04-08T14:10:33Z

I deleted the commas that where right after the open curly brackets, because there wasn't anything in front of the commas.

KernelPRBot · 2018-04-08T14:15:06Z

Hi @Audition-CSBlock!

Thanks for your contribution to the Linux kernel!

Linux kernel development happens on mailing lists, rather than on GitHub - this GitHub repository is a read-only mirror that isn't used for accepting contributions. So that your change can become part of Linux, please email it to us as a patch.

Sending patches isn't quite as simple as sending a pull request, but fortunately it is a well documented process.

Here's what to do:

Format your contribution according to kernel requirements
Decide who to send your contribution to
Set up your system to send your contribution as an email
Send your contribution and wait for feedback

How do I format my contribution?

The Linux kernel community is notoriously picky about how contributions are formatted and sent. Fortunately, they have documented their expectations.

Firstly, all contributions need to be formatted as patches. A patch is a plain text document showing the change you want to make to the code, and documenting why it is a good idea.

You can create patches with git format-patch.

Secondly, patches need 'commit messages', which is the human-friendly documentation explaining what the change is and why it's necessary.

Thirdly, changes have some technical requirements. There is a Linux kernel coding style, and there are licensing requirements you need to comply with.

Both of these are documented in the Submitting Patches documentation that is part of the kernel.

Note that you will almost certainly have to modify your existing git commits to satisfy these requirements. Don't worry: there are many guides on the internet for doing this.

Who do I send my contribution to?

The Linux kernel is composed of a number of subsystems. These subsystems are maintained by different people, and have different mailing lists where they discuss proposed changes.

If you don't already know what subsystem your change belongs to, the get_maintainer.pl script in the kernel source can help you.

get_maintainer.pl will take the patch or patches you created in the previous step, and tell you who is responsible for them, and what mailing lists are used. You can also take a look at the MAINTAINERS file by hand.

Make sure that your list of recipients includes a mailing list. If you can't find a more specific mailing list, then LKML - the Linux Kernel Mailing List - is the place to send your patches.

It's not usually necessary to subscribe to the mailing list before you send the patches, but if you're interested in kernel development, subscribing to a subsystem mailing list is a good idea. (At this point, you probably don't need to subscribe to LKML - it is a very high traffic list with about a thousand messages per day, which is often not useful for beginners.)

How do I send my contribution?

Use git send-email, which will ensure that your patches are formatted in the standard manner. In order to use git send-email, you'll need to configure git to use your SMTP email server.

For more information about using git send-email, look at the Git documentation or type git help send-email. There are a number of useful guides and tutorials about git send-email that can be found on the internet.

How do I get help if I'm stuck?

Firstly, don't get discouraged! There are an enormous number of resources on the internet, and many kernel developers who would like to see you succeed.

Many issues - especially about how to use certain tools - can be resolved by using your favourite internet search engine.

If you can't find an answer, there are a few places you can turn:

Kernel Newbies - this website contains a lot of useful resources for new kernel developers.
The kernel documentation - see also the Documentation directory in the kernel tree.

If you get really, really stuck, you could try the owners of this bot, @daxtens and @ajdlinux. Please be aware that we do have full-time jobs, so we are almost certainly the slowest way to get answers!

I sent my patch - now what?

You wait.

You can check that your email has been received by checking the mailing list archives for the mailing list you sent your patch to. Messages may not be received instantly, so be patient. Kernel developers are generally very busy people, so it may take a few weeks before your patch is looked at.

Then, you keep waiting. Three things may happen:

You might get a response to your email. Often these will be comments, which may require you to make changes to your patch, or explain why your way is the best way. You should respond to these comments, and you may need to submit another revision of your patch to address the issues raised.
Your patch might be merged into the subsystem tree. Code that becomes part of Linux isn't merged into the main repository straight away - it first goes into the subsystem tree, which is managed by the subsystem maintainer. It is then batched up with a number of other changes sent to Linus for inclusion. (This process is described in some detail in the kernel development process guide).
Your patch might be ignored completely. This happens sometimes - don't take it personally. Here's what to do:
- Wait a bit more - patches often take several weeks to get a response; more if they were sent at a busy time.
- Kernel developers often silently ignore patches that break the rules. Check for obvious violations of the Submitting Patches guidelines, the style guidelines, and any other documentation you can find about your subsystem. Check that you're sending your patch to the right place.
- Try again later. When you resend it, don't add angry commentary, as that will get your patch ignored. It might also get you silently blacklisted.

Further information

Working with the kernel development community - the official documentation for new kernel contributors

Happy hacking!

This message was posted by a bot - if you have any questions or suggestions, please talk to my owners, @ajdlinux and @daxtens, or raise an issue at https://github.com/ajdlinux/KernelPRBot.

ProductiveAsparagus56 · 2018-05-18T05:56:52Z

@kaisersGa i really don't know how to follow the instructions the bot gave me, i've searched online. So could you simplify it a bit for me? Thanks.

ProductiveAsparagus56 · 2018-05-18T05:57:21Z

Sorry, wrong button...

huangzonghao · 2018-05-25T00:56:45Z

I remember that linus referred to the github pull-request feature as "horrible" in one of his interview. So I guess that's the reason why linux development follows the convention of using mailing list. Good luck!

TheTechmage · 2018-06-04T20:35:17Z

https://news.ycombinator.com/item?id=3960876 Here's a place that talks about this very thing.

psyborg55 · 2018-07-30T20:11:00Z

some should shoot this PRbot and put credible person in charge of merging pull-requests here

ProductiveAsparagus56 · 2018-08-11T12:59:57Z

Unable to put my commits into a patch because my clone is behind 18k commits.
What do i do?

jmannanc · 2018-09-02T05:42:45Z

Well, what you can do is remote add upstream (link of Linux GitHub repo here) to your local clone. Then run the following:

git checkout master
git fetch upstream
git merge upstream/master

Then make a new branch with

git checkout -b branch_name and finally git-cherrypick your commits over to the new branch.

ProductiveAsparagus56 · 2018-10-07T08:11:46Z

@sneakyfish5 hey thanks for the help, but i don't really get the last part. I've tried git cherry-pick but i don't exactly know how it works 😬

…-otg ADRV9009 zu11eg OTG mode

update fork with upstream

… result After having a typo for writing a histogram trigger. Wrote: echo 'hist:key=pid:ts=common_timestamp.usec' > events/sched/sched_waking/trigger Instead of: echo 'hist:key=pid:ts=common_timestamp.usecs' > events/sched/sched_waking/trigger and the following crash happened: BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 4 PID: 1641 Comm: sh Not tainted 5.9.0-rc5-test+ torvalds#549 Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016 RIP: 0010:event_hist_trigger_func+0x70b/0x1ee0 Code: 24 08 89 d5 49 89 cc e9 8c 00 00 00 4c 89 f2 41 b9 00 10 00 00 4c 89 e1 44 89 ee 4c 89 ff e8 dc d3 ff ff 45 89 ea 4b 8b 14 d7 <f6> 42 08 04 74 17 41 8b 8f c0 00 00 00 8d 71 01 41 89 b7 c0 00 00 RSP: 0018:ffff959213d53db0 EFLAGS: 00010202 RAX: ffffffffffffffea RBX: 0000000000000000 RCX: 0000000000084c04 RDX: 0000000000000000 RSI: df7326aefebd174c RDI: 0000000000031080 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000046 R12: ffff959211dcf690 R13: 0000000000000001 R14: ffff95925a36e370 R15: ffff959251c89800 FS: 00007fb9ea934740(0000) GS:ffff95925ab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 00000000c976c005 CR4: 00000000001706e0 Call Trace: ? trigger_process_regex+0x78/0x110 trigger_process_regex+0xc5/0x110 event_trigger_write+0x71/0xd0 vfs_write+0xca/0x210 ksys_write+0x70/0xf0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fb9eaa29487 Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 This was caused by accessing the hlist_data fields after the call to __create_val_fields() without checking if the creation succeed. Fixes: 63a1e5d ("tracing: Save normal string variables") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

… result After having a typo for writing a histogram trigger. Wrote: echo 'hist:key=pid:ts=common_timestamp.usec' > events/sched/sched_waking/trigger Instead of: echo 'hist:key=pid:ts=common_timestamp.usecs' > events/sched/sched_waking/trigger and the following crash happened: BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 4 PID: 1641 Comm: sh Not tainted 5.9.0-rc5-test+ torvalds#549 Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016 RIP: 0010:event_hist_trigger_func+0x70b/0x1ee0 Code: 24 08 89 d5 49 89 cc e9 8c 00 00 00 4c 89 f2 41 b9 00 10 00 00 4c 89 e1 44 89 ee 4c 89 ff e8 dc d3 ff ff 45 89 ea 4b 8b 14 d7 <f6> 42 08 04 74 17 41 8b 8f c0 00 00 00 8d 71 01 41 89 b7 c0 00 00 RSP: 0018:ffff959213d53db0 EFLAGS: 00010202 RAX: ffffffffffffffea RBX: 0000000000000000 RCX: 0000000000084c04 RDX: 0000000000000000 RSI: df7326aefebd174c RDI: 0000000000031080 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000046 R12: ffff959211dcf690 R13: 0000000000000001 R14: ffff95925a36e370 R15: ffff959251c89800 FS: 00007fb9ea934740(0000) GS:ffff95925ab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 00000000c976c005 CR4: 00000000001706e0 Call Trace: ? trigger_process_regex+0x78/0x110 trigger_process_regex+0xc5/0x110 event_trigger_write+0x71/0xd0 vfs_write+0xca/0x210 ksys_write+0x70/0xf0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fb9eaa29487 Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 This was caused by accessing the hlist_data fields after the call to __create_val_fields() without checking if the creation succeed. Link: https://lkml.kernel.org/r/20201013154852.3abd8702@gandalf.local.home Fixes: 63a1e5d ("tracing: Save normal string variables") Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

… result After having a typo for writing a histogram trigger. Wrote: echo 'hist:key=pid:ts=common_timestamp.usec' > events/sched/sched_waking/trigger Instead of: echo 'hist:key=pid:ts=common_timestamp.usecs' > events/sched/sched_waking/trigger and the following crash happened: BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 4 PID: 1641 Comm: sh Not tainted 5.9.0-rc5-test+ #549 Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016 RIP: 0010:event_hist_trigger_func+0x70b/0x1ee0 Code: 24 08 89 d5 49 89 cc e9 8c 00 00 00 4c 89 f2 41 b9 00 10 00 00 4c 89 e1 44 89 ee 4c 89 ff e8 dc d3 ff ff 45 89 ea 4b 8b 14 d7 <f6> 42 08 04 74 17 41 8b 8f c0 00 00 00 8d 71 01 41 89 b7 c0 00 00 RSP: 0018:ffff959213d53db0 EFLAGS: 00010202 RAX: ffffffffffffffea RBX: 0000000000000000 RCX: 0000000000084c04 RDX: 0000000000000000 RSI: df7326aefebd174c RDI: 0000000000031080 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000046 R12: ffff959211dcf690 R13: 0000000000000001 R14: ffff95925a36e370 R15: ffff959251c89800 FS: 00007fb9ea934740(0000) GS:ffff95925ab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 00000000c976c005 CR4: 00000000001706e0 Call Trace: ? trigger_process_regex+0x78/0x110 trigger_process_regex+0xc5/0x110 event_trigger_write+0x71/0xd0 vfs_write+0xca/0x210 ksys_write+0x70/0xf0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fb9eaa29487 Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 This was caused by accessing the hlist_data fields after the call to __create_val_fields() without checking if the creation succeed. Link: https://lkml.kernel.org/r/20201013154852.3abd8702@gandalf.local.home Fixes: 63a1e5d ("tracing: Save normal string variables") Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Tom Zanussi <zanussi@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Currently, resource tree allocates memory blocks while iterating on the list. It leads to following kernel warning because memblock allocation also invokes memory block reservation API. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:795 __insert_resource+0x8e/0xd0 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0-00022-ge20097fb37e2-dirty torvalds#549 [ 0.000000] epc: c00125c2 ra : c001262c sp : c1c01f50 [ 0.000000] gp : c1d456e0 tp : c1c0a980 t0 : ffffcf20 [ 0.000000] t1 : 00000000 t2 : 00000000 s0 : c1c01f60 [ 0.000000] s1 : ffffcf00 a0 : ffffff00 a1 : c1c0c0c4 [ 0.000000] a2 : 80c12b15 a3 : 80402000 a4 : 80402000 [ 0.000000] a5 : c1c0c0c4 a6 : 80c12b15 a7 : f5faf600 [ 0.000000] s2 : c1c0c0c4 s3 : c1c0e000 s4 : c1009a80 [ 0.000000] s5 : c1c0c000 s6 : c1d48000 s7 : c1613b4c [ 0.000000] s8 : 00000fff s9 : 80000200 s10: c1613b40 [ 0.000000] s11: 00000000 t3 : c1d4a000 t4 : ffffffff This is also unnecessary as we can pre-compute the total memblocks required for each memory region and allocate it before the loop. It save precious boot time not going through memblock allocation code every time. Fixes: 00ab027 ("RISC-V: Add kernel image sections to the resource tree") Signed-off-by: Atish Patra <atish.patra@wdc.com>

Currently, resource tree allocates memory blocks while iterating on the list. It leads to following kernel warning because memblock allocation also invokes memory block reservation API. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:795 __insert_resource+0x8e/0xd0 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0-00022-ge20097fb37e2-dirty torvalds#549 [ 0.000000] epc: c00125c2 ra : c001262c sp : c1c01f50 [ 0.000000] gp : c1d456e0 tp : c1c0a980 t0 : ffffcf20 [ 0.000000] t1 : 00000000 t2 : 00000000 s0 : c1c01f60 [ 0.000000] s1 : ffffcf00 a0 : ffffff00 a1 : c1c0c0c4 [ 0.000000] a2 : 80c12b15 a3 : 80402000 a4 : 80402000 [ 0.000000] a5 : c1c0c0c4 a6 : 80c12b15 a7 : f5faf600 [ 0.000000] s2 : c1c0c0c4 s3 : c1c0e000 s4 : c1009a80 [ 0.000000] s5 : c1c0c000 s6 : c1d48000 s7 : c1613b4c [ 0.000000] s8 : 00000fff s9 : 80000200 s10: c1613b40 [ 0.000000] s11: 00000000 t3 : c1d4a000 t4 : ffffffff This is also unnecessary as we can pre-compute the total memblocks required for each memory region and allocate it before the loop. It save precious boot time not going through memblock allocation code every time. Fixes: 00ab027 ("RISC-V: Add kernel image sections to the resource tree") Reviewed-by: Anup Patel <anup@brainfault.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Atish Patra <atish.patra@wdc.com>

Currently, resource tree allocates memory blocks while iterating on the list. It leads to following kernel warning because memblock allocation also invokes memory block reservation API. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:795 __insert_resource+0x8e/0xd0 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0-00022-ge20097fb37e2-dirty #549 [ 0.000000] epc: c00125c2 ra : c001262c sp : c1c01f50 [ 0.000000] gp : c1d456e0 tp : c1c0a980 t0 : ffffcf20 [ 0.000000] t1 : 00000000 t2 : 00000000 s0 : c1c01f60 [ 0.000000] s1 : ffffcf00 a0 : ffffff00 a1 : c1c0c0c4 [ 0.000000] a2 : 80c12b15 a3 : 80402000 a4 : 80402000 [ 0.000000] a5 : c1c0c0c4 a6 : 80c12b15 a7 : f5faf600 [ 0.000000] s2 : c1c0c0c4 s3 : c1c0e000 s4 : c1009a80 [ 0.000000] s5 : c1c0c000 s6 : c1d48000 s7 : c1613b4c [ 0.000000] s8 : 00000fff s9 : 80000200 s10: c1613b40 [ 0.000000] s11: 00000000 t3 : c1d4a000 t4 : ffffffff This is also unnecessary as we can pre-compute the total memblocks required for each memory region and allocate it before the loop. It save precious boot time not going through memblock allocation code every time. Fixes: 00ab027 ("RISC-V: Add kernel image sections to the resource tree") Reviewed-by: Anup Patel <anup@brainfault.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

Currently, resource tree allocates memory blocks while iterating on the list. It leads to following kernel warning because memblock allocation also invokes memory block reservation API. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:795 __insert_resource+0x8e/0xd0 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0-00022-ge20097fb37e2-dirty torvalds#549 [ 0.000000] epc: c00125c2 ra : c001262c sp : c1c01f50 [ 0.000000] gp : c1d456e0 tp : c1c0a980 t0 : ffffcf20 [ 0.000000] t1 : 00000000 t2 : 00000000 s0 : c1c01f60 [ 0.000000] s1 : ffffcf00 a0 : ffffff00 a1 : c1c0c0c4 [ 0.000000] a2 : 80c12b15 a3 : 80402000 a4 : 80402000 [ 0.000000] a5 : c1c0c0c4 a6 : 80c12b15 a7 : f5faf600 [ 0.000000] s2 : c1c0c0c4 s3 : c1c0e000 s4 : c1009a80 [ 0.000000] s5 : c1c0c000 s6 : c1d48000 s7 : c1613b4c [ 0.000000] s8 : 00000fff s9 : 80000200 s10: c1613b40 [ 0.000000] s11: 00000000 t3 : c1d4a000 t4 : ffffffff This is also unnecessary as we can pre-compute the total memblocks required for each memory region and allocate it before the loop. It save precious boot time not going through memblock allocation code every time. Fixes: 00ab027 ("RISC-V: Add kernel image sections to the resource tree") Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

This commit fixes the following checkpatch.pl errors: ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#535: FILE: ./hal/HalBtcOutSrc.h:535: +void EXhalbtcoutsrc_PowerOnSetting(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#536: FILE: ./hal/HalBtcOutSrc.h:536: +void EXhalbtcoutsrc_InitHwConfig(struct BTC_COEXIST * pBtCoexist, u8 bWifiOnly); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#537: FILE: ./hal/HalBtcOutSrc.h:537: +void EXhalbtcoutsrc_InitCoexDm(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#538: FILE: ./hal/HalBtcOutSrc.h:538: +void EXhalbtcoutsrc_IpsNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#539: FILE: ./hal/HalBtcOutSrc.h:539: +void EXhalbtcoutsrc_LpsNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#540: FILE: ./hal/HalBtcOutSrc.h:540: +void EXhalbtcoutsrc_ScanNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#541: FILE: ./hal/HalBtcOutSrc.h:541: +void EXhalbtcoutsrc_ConnectNotify(struct BTC_COEXIST * pBtCoexist, u8 action); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#543: FILE: ./hal/HalBtcOutSrc.h:543: + struct BTC_COEXIST * pBtCoexist, enum RT_MEDIA_STATUS mediaStatus ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#545: FILE: ./hal/HalBtcOutSrc.h:545: +void EXhalbtcoutsrc_SpecialPacketNotify(struct BTC_COEXIST * pBtCoexist, u8 pktType); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#547: FILE: ./hal/HalBtcOutSrc.h:547: + struct BTC_COEXIST * pBtCoexist, u8 *tmpBuf, u8 length ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#549: FILE: ./hal/HalBtcOutSrc.h:549: +void EXhalbtcoutsrc_HaltNotify(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#550: FILE: ./hal/HalBtcOutSrc.h:550: +void EXhalbtcoutsrc_PnpNotify(struct BTC_COEXIST * pBtCoexist, u8 pnpState); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#551: FILE: ./hal/HalBtcOutSrc.h:551: +void EXhalbtcoutsrc_Periodical(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#555: FILE: ./hal/HalBtcOutSrc.h:555: +void EXhalbtcoutsrc_DisplayBtCoexInfo(struct BTC_COEXIST * pBtCoexist); Signed-off-by: Marco Cesati <marcocesati@gmail.com>

This commit fixes the following checkpatch.pl errors: ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#535: FILE: ./hal/HalBtcOutSrc.h:535: +void EXhalbtcoutsrc_PowerOnSetting(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#536: FILE: ./hal/HalBtcOutSrc.h:536: +void EXhalbtcoutsrc_InitHwConfig(struct BTC_COEXIST * pBtCoexist, u8 bWifiOnly); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#537: FILE: ./hal/HalBtcOutSrc.h:537: +void EXhalbtcoutsrc_InitCoexDm(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#538: FILE: ./hal/HalBtcOutSrc.h:538: +void EXhalbtcoutsrc_IpsNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#539: FILE: ./hal/HalBtcOutSrc.h:539: +void EXhalbtcoutsrc_LpsNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#540: FILE: ./hal/HalBtcOutSrc.h:540: +void EXhalbtcoutsrc_ScanNotify(struct BTC_COEXIST * pBtCoexist, u8 type); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#541: FILE: ./hal/HalBtcOutSrc.h:541: +void EXhalbtcoutsrc_ConnectNotify(struct BTC_COEXIST * pBtCoexist, u8 action); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#543: FILE: ./hal/HalBtcOutSrc.h:543: + struct BTC_COEXIST * pBtCoexist, enum RT_MEDIA_STATUS mediaStatus ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#545: FILE: ./hal/HalBtcOutSrc.h:545: +void EXhalbtcoutsrc_SpecialPacketNotify(struct BTC_COEXIST * pBtCoexist, u8 pktType); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#547: FILE: ./hal/HalBtcOutSrc.h:547: + struct BTC_COEXIST * pBtCoexist, u8 *tmpBuf, u8 length ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#549: FILE: ./hal/HalBtcOutSrc.h:549: +void EXhalbtcoutsrc_HaltNotify(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#550: FILE: ./hal/HalBtcOutSrc.h:550: +void EXhalbtcoutsrc_PnpNotify(struct BTC_COEXIST * pBtCoexist, u8 pnpState); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#551: FILE: ./hal/HalBtcOutSrc.h:551: +void EXhalbtcoutsrc_Periodical(struct BTC_COEXIST * pBtCoexist); ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar" torvalds#555: FILE: ./hal/HalBtcOutSrc.h:555: +void EXhalbtcoutsrc_DisplayBtCoexInfo(struct BTC_COEXIST * pBtCoexist); Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Marco Cesati <marcocesati@gmail.com> Link: https://lore.kernel.org/r/20210315170618.2566-7-marcocesati@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

pasid_mutex and dev->iommu->param->lock are held while unbinding mm is flushing IO page fault workqueue and waiting for all page fault works to finish. But an in-flight page fault work also need to hold the two locks while unbinding mm are holding them and waiting for the work to finish. This may cause an ABBA deadlock issue as shown below: idxd 0000:00:0a.0: unbind PASID 2 ====================================================== WARNING: possible circular locking dependency detected 5.14.0-rc7+ torvalds#549 Not tainted [ 186.615245] ---------- dsa_test/898 is trying to acquire lock: ffff888100d854e8 (&param->lock){+.+.}-{3:3}, at: iopf_queue_flush_dev+0x29/0x60 but task is already holding lock: ffffffff82b2f7c8 (pasid_mutex){+.+.}-{3:3}, at: intel_svm_unbind+0x34/0x1e0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (pasid_mutex){+.+.}-{3:3}: __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 intel_svm_page_response+0x8e/0x260 iommu_page_response+0x122/0x200 iopf_handle_group+0x1c2/0x240 process_one_work+0x2a5/0x5a0 worker_thread+0x55/0x400 kthread+0x13b/0x160 ret_from_fork+0x22/0x30 -> #1 (&param->fault_param->lock){+.+.}-{3:3}: __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 iommu_report_device_fault+0xc2/0x170 prq_event_thread+0x28a/0x580 irq_thread_fn+0x28/0x60 irq_thread+0xcf/0x180 kthread+0x13b/0x160 ret_from_fork+0x22/0x30 -> #0 (&param->lock){+.+.}-{3:3}: __lock_acquire+0x1134/0x1d60 lock_acquire+0xc6/0x2e0 __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 iopf_queue_flush_dev+0x29/0x60 intel_svm_drain_prq+0x127/0x210 intel_svm_unbind+0xc5/0x1e0 iommu_sva_unbind_device+0x62/0x80 idxd_cdev_release+0x15a/0x200 [idxd] __fput+0x9c/0x250 ____fput+0xe/0x10 task_work_run+0x64/0xa0 exit_to_user_mode_prepare+0x227/0x230 syscall_exit_to_user_mode+0x2c/0x60 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae other info that might help us debug this: Chain exists of: &param->lock --> &param->fault_param->lock --> pasid_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(pasid_mutex); lock(&param->fault_param->lock); lock(pasid_mutex); lock(&param->lock); *** DEADLOCK *** 2 locks held by dsa_test/898: #0: ffff888100cc1cc0 (&group->mutex){+.+.}-{3:3}, at: iommu_sva_unbind_device+0x53/0x80 #1: ffffffff82b2f7c8 (pasid_mutex){+.+.}-{3:3}, at: intel_svm_unbind+0x34/0x1e0 stack backtrace: CPU: 2 PID: 898 Comm: dsa_test Not tainted 5.14.0-rc7+ torvalds#549 Hardware name: Intel Corporation Kabylake Client platform/KBL S DDR4 UD IMM CRB, BIOS KBLSE2R1.R00.X050.P01.1608011715 08/01/2016 Call Trace: dump_stack_lvl+0x5b/0x74 dump_stack+0x10/0x12 print_circular_bug.cold+0x13d/0x142 check_noncircular+0xf1/0x110 __lock_acquire+0x1134/0x1d60 lock_acquire+0xc6/0x2e0 ? iopf_queue_flush_dev+0x29/0x60 ? pci_mmcfg_read+0xde/0x240 __mutex_lock+0x75/0x730 ? iopf_queue_flush_dev+0x29/0x60 ? pci_mmcfg_read+0xfd/0x240 ? iopf_queue_flush_dev+0x29/0x60 mutex_lock_nested+0x1b/0x20 iopf_queue_flush_dev+0x29/0x60 intel_svm_drain_prq+0x127/0x210 ? intel_pasid_tear_down_entry+0x22e/0x240 intel_svm_unbind+0xc5/0x1e0 iommu_sva_unbind_device+0x62/0x80 idxd_cdev_release+0x15a/0x200 pasid_mutex protects pasid and svm data mapping data. It's unnecessary to hold pasid_mutex while flushing the workqueue. To fix the deadlock issue, unlock pasid_pasid during flushing the workqueue to allow the works to be handled. Fixes: d5b9e4b ("iommu/vt-d: Report prq to io-pgfault framework") Reported-and-tested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/r/20210826215918.4073446-1-fenghua.yu@intel.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210828070622.2437559-3-baolu.lu@linux.intel.com [joro: Removed timing information from kernel log messages] Signed-off-by: Joerg Roedel <jroedel@suse.de>

[ Upstream commit 6ef0505 ] pasid_mutex and dev->iommu->param->lock are held while unbinding mm is flushing IO page fault workqueue and waiting for all page fault works to finish. But an in-flight page fault work also need to hold the two locks while unbinding mm are holding them and waiting for the work to finish. This may cause an ABBA deadlock issue as shown below: idxd 0000:00:0a.0: unbind PASID 2 ====================================================== WARNING: possible circular locking dependency detected 5.14.0-rc7+ torvalds#549 Not tainted [ 186.615245] ---------- dsa_test/898 is trying to acquire lock: ffff888100d854e8 (&param->lock){+.+.}-{3:3}, at: iopf_queue_flush_dev+0x29/0x60 but task is already holding lock: ffffffff82b2f7c8 (pasid_mutex){+.+.}-{3:3}, at: intel_svm_unbind+0x34/0x1e0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (pasid_mutex){+.+.}-{3:3}: __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 intel_svm_page_response+0x8e/0x260 iommu_page_response+0x122/0x200 iopf_handle_group+0x1c2/0x240 process_one_work+0x2a5/0x5a0 worker_thread+0x55/0x400 kthread+0x13b/0x160 ret_from_fork+0x22/0x30 -> #1 (&param->fault_param->lock){+.+.}-{3:3}: __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 iommu_report_device_fault+0xc2/0x170 prq_event_thread+0x28a/0x580 irq_thread_fn+0x28/0x60 irq_thread+0xcf/0x180 kthread+0x13b/0x160 ret_from_fork+0x22/0x30 -> #0 (&param->lock){+.+.}-{3:3}: __lock_acquire+0x1134/0x1d60 lock_acquire+0xc6/0x2e0 __mutex_lock+0x75/0x730 mutex_lock_nested+0x1b/0x20 iopf_queue_flush_dev+0x29/0x60 intel_svm_drain_prq+0x127/0x210 intel_svm_unbind+0xc5/0x1e0 iommu_sva_unbind_device+0x62/0x80 idxd_cdev_release+0x15a/0x200 [idxd] __fput+0x9c/0x250 ____fput+0xe/0x10 task_work_run+0x64/0xa0 exit_to_user_mode_prepare+0x227/0x230 syscall_exit_to_user_mode+0x2c/0x60 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae other info that might help us debug this: Chain exists of: &param->lock --> &param->fault_param->lock --> pasid_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(pasid_mutex); lock(&param->fault_param->lock); lock(pasid_mutex); lock(&param->lock); *** DEADLOCK *** 2 locks held by dsa_test/898: #0: ffff888100cc1cc0 (&group->mutex){+.+.}-{3:3}, at: iommu_sva_unbind_device+0x53/0x80 #1: ffffffff82b2f7c8 (pasid_mutex){+.+.}-{3:3}, at: intel_svm_unbind+0x34/0x1e0 stack backtrace: CPU: 2 PID: 898 Comm: dsa_test Not tainted 5.14.0-rc7+ torvalds#549 Hardware name: Intel Corporation Kabylake Client platform/KBL S DDR4 UD IMM CRB, BIOS KBLSE2R1.R00.X050.P01.1608011715 08/01/2016 Call Trace: dump_stack_lvl+0x5b/0x74 dump_stack+0x10/0x12 print_circular_bug.cold+0x13d/0x142 check_noncircular+0xf1/0x110 __lock_acquire+0x1134/0x1d60 lock_acquire+0xc6/0x2e0 ? iopf_queue_flush_dev+0x29/0x60 ? pci_mmcfg_read+0xde/0x240 __mutex_lock+0x75/0x730 ? iopf_queue_flush_dev+0x29/0x60 ? pci_mmcfg_read+0xfd/0x240 ? iopf_queue_flush_dev+0x29/0x60 mutex_lock_nested+0x1b/0x20 iopf_queue_flush_dev+0x29/0x60 intel_svm_drain_prq+0x127/0x210 ? intel_pasid_tear_down_entry+0x22e/0x240 intel_svm_unbind+0xc5/0x1e0 iommu_sva_unbind_device+0x62/0x80 idxd_cdev_release+0x15a/0x200 pasid_mutex protects pasid and svm data mapping data. It's unnecessary to hold pasid_mutex while flushing the workqueue. To fix the deadlock issue, unlock pasid_pasid during flushing the workqueue to allow the works to be handled. Fixes: d5b9e4b ("iommu/vt-d: Report prq to io-pgfault framework") Reported-and-tested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/r/20210826215918.4073446-1-fenghua.yu@intel.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210828070622.2437559-3-baolu.lu@linux.intel.com [joro: Removed timing information from kernel log messages] Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>

rust: add support for defining irq chips.

ProductiveAsparagus56 added 6 commits April 8, 2018 15:53

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martikyan approved these changes Apr 30, 2018

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ProductiveAsparagus56 closed this May 18, 2018

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libinyang mentioned this pull request Nov 9, 2018

Up2 with nocodec topology: DSP panic with 6 SSPs thesofproject/linux#253

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commodo pushed a commit to commodo/linux that referenced this pull request Oct 1, 2019

Merge pull request torvalds#549 from analogdevicesinc/adrv9009-zu11eg…

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…-otg ADRV9009 zu11eg OTG mode

ProductiveAsparagus56 added 5 commits April 29, 2020 17:46

update cache to merge with upstream

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update other.json to fix merge

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update power8/other to fix merge

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Merge pull request #1 from torvalds/master

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update fork with upstream

Merge remote-tracking branch 'upstream/master'

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ojeda pushed a commit to ojeda/linux that referenced this pull request Nov 24, 2021

Merge pull request torvalds#549 from wedsonaf/irq-chip

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rust: add support for defining irq chips.

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