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Could you provide an example where MSan checks an output parameter? On Fri, Mar 16, 2018 at 9:53 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Hi all, > > I'm trying to figure out which parameters of a given InlineAsm instruction > are its inputs, and which are the outputs (rationale: make sure MSan > doesn't check the output parameters of

Hi all, I'm trying to figure out which parameters of a given InlineAsm instruction are its inputs, and which are the outputs (rationale: make sure MSan doesn't check the output parameters of an asm() statement). As far as I understand, this information is only available through the ConstraintInfoVector for the InlineAsm. However there's no exact match between the constraints and the

...return 0 [ 1023.407519] nouveau: DRM-master:00000000:00000000: ioctl: size 48 Any input very welcome, otherwise I'll continue blundering about slightly in the dark. Thanks Dave [1] https://www.amazon.co.uk/ASUS-GT710-4H-SL-2GD5-GeForce-Multi-Monitor-Productivity/dp/B0897T6PYM/ [2] https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c#L114 [3] https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c#L201

...t; I guess suspect/potential victim is every code which uses > drm_mode_vrefresh - after this patch the function can return different > value(if there are differences between provided and calculated vrefresh). > > Quick examples where output of this function matters: > > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c#L387 Already looks quite sketchy due to rounding. > > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c#L42 msleep() is in no way accurate so looks rather sket...

On Thu, Jan 16, 2020 at 12:16:30PM -0800, Ralph Campbell wrote: > Can you point me to the latest ODP code? Seems like my understanding is > quite off. https://elixir.bootlin.com/linux/v5.5-rc6/source/drivers/infiniband/hw/mlx5/odp.c Look for the word 'implicit' mlx5_ib_invalidate_range() releases the interval_notifier when there are no populated shadow PTEs in its leaf pagefault_implicit_mr() creates an interval_notifier that covers the level in the...

...0:00000000: ioctl: size 48 > > Any input very welcome, otherwise I'll continue blundering about > slightly in the dark. > > Thanks > Dave > > [1] > https://www.amazon.co.uk/ASUS-GT710-4H-SL-2GD5-GeForce-Multi-Monitor-Productivity/dp/B0897T6PYM/ > [2] > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c#L114 > [3] > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c#L201 > _______________________________________________ > Nouveau mailing list > Nouveau at lis...

...ictim is every code which uses > > drm_mode_vrefresh - after this patch the function can return different > > value(if there are differences between provided and calculated vrefresh). > > > > Quick examples where output of this function matters: > > > > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c#L387 > > Already looks quite sketchy due to rounding. > > > > > https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c#L42 > > msleep() is in n...

...er keeps it disabled by default. > > > User should enable it when user prefers to. > > > > OK. And which commit changes that? > vdpa dev add command [1] has the ability to set the desired features. > The commit log of this patch has an example too. > > [1] https://elixir.bootlin.com/linux/v6.3-rc2/C/ident/vdpa_nl_cmd_dev_add_set_doit I mean if this is claiming to fix a performance regression it should have a Fixes: tag with the commit that introduced the regression. -- MST

...rry, I don't quite understand your logic. RPMsg is a communication protocol, not an API. An RPMsg implementation has to be able to communicate with other compliant RPMsg implementations, it doesn't have to provide any specific API. Am I missing anything? Thanks Guennadi > [4] https://elixir.bootlin.com/linux/v5.9-rc5/source/samples/rpmsg/rpmsg_client_sample.c > > Regards, > Arnaud > > > > > > So i would be agree with Vincent[2] which proposed to switch on a > > > RPMsg API and creating a vhost rpmsg device. This is also proposed in > > >...

...rry, I don't quite understand your logic. RPMsg is a communication protocol, not an API. An RPMsg implementation has to be able to communicate with other compliant RPMsg implementations, it doesn't have to provide any specific API. Am I missing anything? Thanks Guennadi > [4] https://elixir.bootlin.com/linux/v5.9-rc5/source/samples/rpmsg/rpmsg_client_sample.c > > Regards, > Arnaud > > > > > > So i would be agree with Vincent[2] which proposed to switch on a > > > RPMsg API and creating a vhost rpmsg device. This is also proposed in > > >...

...eveloper's Wine build on my Snow Leopard after searching the internet for close to two weeks i finally have a wine build (using the +universal build) on my hard drive. My only problem is I can't use wine because my Users/username/.wine folder does not exist, pumps out, wine: chdir to /Users/elixir/.wine : No such file or directory after typing in wine and dragging the .exe file into the terminal. Can someone please tell me how I can either find this .wine folder or how I can create it with my entire build within the folder? I know most people would tell me that you need to read the FAQ t...

On Sun, Jul 28, 2024 at 11:34:14PM +0200, Danilo Krummrich wrote: > On Sun, Jul 28, 2024 at 03:13:08PM -0300, Jason Gunthorpe wrote: > I think we're on the same page with all that. As clarified in [1], that's not a > big concern, I was referring to the changes required to integrate the auxbus > stuff. Well, I see this thread having the realization that things are not setup

...hat's said, shall we multiple the RPMsg implementations in Linux with several APIs, With the risk to make the RPMsg clients devices dependent on these implementations? That could lead to complex code or duplications... I'm not the right person to answer, Bjorn and Mathieu are. [5] https://elixir.bootlin.com/linux/v5.8.10/source/Documentation/rpmsg.txt#L66 Thanks, Arnaud > > Thanks > Guennadi > >> [4] https://elixir.bootlin.com/linux/v5.9-rc5/source/samples/rpmsg/rpmsg_client_sample.c >> >> Regards, >> Arnaud >> >>> >>>>...

...> } > > err_xdp_frags: > > - if (unlikely(xdp_page != page)) > > - __free_pages(xdp_page, 0); > > It seems __free_pages() and put_page() is used interchangeably here. > Perhaps using __free_pages() have performance reason? As the comment below: > > https://elixir.bootlin.com/linux/v6.3-rc3/source/net/core/page_pool.c#L500 Yes, but now we don't seem to be very good to distinguish it. But I think it doesn't matter. This logic is rare under actual situation. Thanks. > > > - > > if (xdp_buff_has_frags(&xdp)) { > > sh...

...cided to go with two distinct APIs: virtio for guests and vhost for the host, noone bothered to create a single API for both and nobody seems to miss one. Why would we want one with RPMsg? Thanks Guennadi > I'm not the right person to answer, Bjorn and Mathieu are. > > [5] https://elixir.bootlin.com/linux/v5.8.10/source/Documentation/rpmsg.txt#L66 > > Thanks, > Arnaud > > > > > > Thanks > > Guennadi > > > >> [4] https://elixir.bootlin.com/linux/v5.9-rc5/source/samples/rpmsg/rpmsg_client_sample.c > >> > >> Rega...

...cided to go with two distinct APIs: virtio for guests and vhost for the host, noone bothered to create a single API for both and nobody seems to miss one. Why would we want one with RPMsg? Thanks Guennadi > I'm not the right person to answer, Bjorn and Mathieu are. > > [5] https://elixir.bootlin.com/linux/v5.8.10/source/Documentation/rpmsg.txt#L66 > > Thanks, > Arnaud > > > > > > Thanks > > Guennadi > > > >> [4] https://elixir.bootlin.com/linux/v5.9-rc5/source/samples/rpmsg/rpmsg_client_sample.c > >> > >> Rega...

On Wed, Oct 11, 2017 at 01:30:15PM -0700, Thomas Garnier wrote: > Provide an option to default visibility to hidden except for key > symbols. This option is disabled by default and will be used by x86_64 > PIE support to remove errors between compilation units. > > The default visibility is also enabled for external symbols that are > compared as they maybe equals (start/end of

On Wed, Oct 11, 2017 at 01:30:15PM -0700, Thomas Garnier wrote: > Provide an option to default visibility to hidden except for key > symbols. This option is disabled by default and will be used by x86_64 > PIE support to remove errors between compilation units. > > The default visibility is also enabled for external symbols that are > compared as they maybe equals (start/end of

...t the implementation of the function ?nouveau_connector_of_detect? contains still an unchecked call of the function ?kmemdup?. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/nouveau/nouveau_connector.c?id=1c0cc5f1ae5ee5a6913704c0d75a6e99604ee30a#n476 https://elixir.bootlin.com/linux/v5.4-rc2/source/drivers/gpu/drm/nouveau/nouveau_connector.c#L476 How do you think about to improve it? Regards, Markus

...>>> Thus omit a redundant message for the exception handling in the >>> calling function. >> It looks to me that not all error path of platform_get_irq() were loggd. > How do you think about to clarify the handling of the error code ?-EPROBE_DEFER? any more? > https://elixir.bootlin.com/linux/v5.6.3/source/drivers/base/platform.c#L202 Aha, it looks to me that I'm on the wrong branch. Sorry. > > >> And git grep told me there're other users of platform_get_irq() that check and log by themselves. > Source code analysis can point further update c...