From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"Ahmed S. Darwish" <a.darwish@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-usb@vger.kernel.org,
Thomas Winischhofer <thomas@winischhofer.net>,
Johan Hovold <johan@kernel.org>,
Mathias Nyman <mathias.nyman@intel.com>,
Valentina Manea <valentina.manea.m@gmail.com>,
Shuah Khan <shuah@kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
linux-omap@vger.kernel.org, Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
Felipe Balbi <balbi@kernel.org>,
Duncan Sands <duncan.sands@free.fr>
Subject: Re: [patch V2 06/13] usb: host: isp1362: Replace in_interrupt() usage
Date: Wed, 28 Oct 2020 12:27:52 +0100 [thread overview]
Message-ID: <20201028112752.GA1991431@kroah.com> (raw)
In-Reply-To: <20201019101110.240285929@linutronix.de>
On Mon, Oct 19, 2020 at 12:06:35PM +0200, Thomas Gleixner wrote:
> isp1362_show_regs() is a debugging-only function, with no call sites. It
> prints the cached value of the HCuPINTENB register if in_interupt() is
> true, otherwise it reads the actual register content.
>
> The usage of in_interrupt() in drivers is phased out and Linus clearly
> requested that code which changes behaviour depending on context should
> either be separated or the context be conveyed in an argument passed by the
> caller, which usually knows the context.
>
> Make the conditional based on a function argument.
>
> Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: linux-usb@vger.kernel.org
> ---
> V2: Fix silly typo
> ---
> drivers/usb/host/isp1362.h | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> --- a/drivers/usb/host/isp1362.h
> +++ b/drivers/usb/host/isp1362.h
> @@ -793,7 +793,8 @@ static void isp1362_write_fifo(struct is
> ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \
> }
>
> -static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd)
> +static void __attribute__((__unused__))
> +isp1362_show_regs(struct isp1362_hcd *isp1362_hcd, bool cached_inten)
> {
> isp1362_show_reg(isp1362_hcd, HCREVISION);
> isp1362_show_reg(isp1362_hcd, HCCONTROL);
> @@ -815,7 +816,7 @@ static void __attribute__((__unused__))
> isp1362_show_reg(isp1362_hcd, HCXFERCTR);
> isp1362_show_reg(isp1362_hcd, HCuPINT);
>
> - if (in_interrupt())
> + if (cached_inten)
> DBG(0, "%-12s[%02x]: %04x\n", "HCuPINTENB",
> ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), isp1362_hcd->irqenb);
> else
>
Let's just delete this whole function, if no one is calling it, it
should not be present. I'll go make up a patch for that...
thanks,
greg k-h
next prev parent reply other threads:[~2020-10-28 22:19 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-19 10:06 [patch V2 00/13] USB: Cleanup in_interupt/in_irq/in_atomic() usage Thomas Gleixner
2020-10-19 10:06 ` [patch V2 01/13] USB: sisusbvga: Make console support depend on BROKEN Thomas Gleixner
2020-10-19 10:06 ` [patch V2 02/13] USB: serial: keyspan_pda: Replace in_interrupt() usage Thomas Gleixner
2020-10-25 16:56 ` Johan Hovold
2020-10-26 12:47 ` Sebastian Andrzej Siewior
2020-10-27 8:16 ` Johan Hovold
2020-10-19 10:06 ` [patch V2 03/13] USB: serial: keyspan_pda: Consolidate room query Thomas Gleixner
2020-10-25 17:05 ` Johan Hovold
2020-10-19 10:06 ` [patch V2 04/13] USB: serial: digi_acceleport: Remove in_interrupt() usage Thomas Gleixner
2020-10-25 17:16 ` Johan Hovold
2020-10-26 14:03 ` [PATCH v3 04/13 ] " Sebastian Andrzej Siewior
2020-10-27 8:26 ` Johan Hovold
2020-10-19 10:06 ` [patch V2 05/13] usb: xhci: Remove in_interrupt() checks Thomas Gleixner
2020-10-19 10:06 ` [patch V2 06/13] usb: host: isp1362: Replace in_interrupt() usage Thomas Gleixner
2020-10-28 11:27 ` Greg Kroah-Hartman [this message]
2020-10-19 10:06 ` [patch V2 07/13] usbip: Remove in_interrupt() check Thomas Gleixner
2020-10-19 10:06 ` [patch V2 08/13] usb: hosts: Remove in_interrupt() from comments Thomas Gleixner
2020-10-19 16:28 ` Alan Stern
2020-10-19 10:06 ` [patch V2 09/13] USB: host: ehci-pmcmsp: Cleanup usb_hcd_msp_remove() Thomas Gleixner
2020-10-19 16:28 ` Alan Stern
2020-10-19 10:06 ` [patch V2 10/13] usb: gadget: pxa27x_udc: Replace in_interrupt() usage in comments Thomas Gleixner
2020-10-19 10:06 ` [patch V2 11/13] usb: gadget: udc: Remove in_interrupt()/in_irq() from comments Thomas Gleixner
2020-10-19 16:28 ` Alan Stern
2020-10-19 10:06 ` [patch V2 12/13] usb: core: Replace in_interrupt() in comments Thomas Gleixner
2020-10-19 16:28 ` Alan Stern
2020-10-19 10:06 ` [patch V2 13/13] usb: atm: Replace in_interrupt() usage in comment Thomas Gleixner
2020-10-19 10:28 ` Duncan Sands
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