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Message-ID: <ZBf3cqP4DxyRzn8M@khadija-virtual-machine>
Date:   Mon, 20 Mar 2023 11:04:34 +0500
From:   Khadija Kamran <kamrankhadijadj@...il.com>
To:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Cc:     outreachy@...ts.linux.dev,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] staging: axis-fifo: initialize timeouts in probe only

On Thu, Mar 16, 2023 at 09:17:52PM +0100, Fabio M. De Francesco wrote:
> On giovedì 16 marzo 2023 19:35:09 CET Khadija Kamran wrote:
> > On Thu, Mar 16, 2023 at 05:17:47PM +0100, Fabio M. De Francesco wrote:
> 
> [snip]
> 
> > > When you are done with build, install, and final reboot to test if your
> > > module can "modprobe" or "insmod" (i.e. link with the running custom 
> kernel
> > > you built, installed and boot), try to compare the output of the following
> > > commands:
> > > 
> > > # uname -a
> > > Linux suse 6.2.2-1-default #1 SMP PREEMPT_DYNAMIC Thu Mar  9 06:06:13 UTC
> > > 2023 (44ca817) x86_64 x86_64 x86_64 GNU/Linux
> > 
> > The above command works
> > 
> > > AND
> > > 
> > > # modinfo <name of the module you are testing here>
> > 
> > On running 'modinfo axis-fifo' I get error saying module axis-fifo not
> > found.
> 
> I built axis-fifo with your changes and then I ran "make install 
> modules_install" in a QEMU/KVM x86_32 VM that I use on a Linux host for 
> testing my patches (Linux on Linux).
> 
> tweed32:~ # uname -a
> Linux tweed32 6.3.0-rc2-x86-32-debug+ #32 SMP PREEMPT_DYNAMIC Thu Mar 16 
> 18:09:49 CET 2023 i686 athlon i386 GNU/Linux
>

Hey Fabio!

The following command is not working for me. I think I have mentioned
this before, it says, module axis-fifo not found.

Thank you!

Regards,
Khadija

> tweed32:~ # modinfo axis-fifo 
> filename:       /lib/modules/6.3.0-rc2-x86-32-debug+/kernel/drivers/staging/
> axis-fifo/axis-fifo.ko
> description:    Xilinx AXI-Stream FIFO v4.1 IP core driver
> author:         Jacob Feder <jacobsfeder@...il.com>
> license:        GPL
> srcversion:     EBF46AD6851EAAE67D1000B
> alias:          of:N*T*Cxlnx,axi-fifo-mm-s-4.1C*
> alias:          of:N*T*Cxlnx,axi-fifo-mm-s-4.1
> depends:        
> staging:        Y
> retpoline:      Y
> intree:         Y
> name:           axis_fifo
> vermagic:       6.3.0-rc2-x86-32-debug+ SMP preempt mod_unload modversions K7 
> parm:           read_timeout:ms to wait before blocking read() timing out; set 
> to -1 for no timeout (long)
> parm:           write_timeout:ms to wait before blocking write() timing out; 
> set to -1 for no timeout (long)
> 
> Do you see the "parm" lines? What's the type of read and write_timeout?
> 
> Fabio
> 
> 

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