From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: linux-acpi@vger.kernel.org, rafael@kernel.org,
linux-media@vger.kernel.org, heikki.krogerus@linux.intel.com
Subject: Re: [PATCH 7/8] ACPI: property: Skip MIPI property table without "mipi-img" prefix
Date: Thu, 19 Jan 2023 18:09:25 +0200 [thread overview]
Message-ID: <Y8lrNe9S4eIdWbXu@smile.fi.intel.com> (raw)
In-Reply-To: <Y8lnBeamT90z4aKY@paasikivi.fi.intel.com>
On Thu, Jan 19, 2023 at 03:51:33PM +0000, Sakari Ailus wrote:
> On Tue, Jan 17, 2023 at 05:29:54PM +0200, Andy Shevchenko wrote:
> > On Tue, Jan 17, 2023 at 02:22:43PM +0200, Sakari Ailus wrote:
...
> > > + if (memcmp(elements[0].string.pointer, MIPI_IMG_PREFIX,
> > > + sizeof(MIPI_IMG_PREFIX) - 1))
> >
> > str_has_prefix()
>
> str_has_prefix() calls strlen() on prefix on every call. sizeof() will
> generate much less code --- it's just a number.
Have you tried that? Because the strlen() over const string literals will be
optimized away on compilation time.
> > > + return;
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2023-01-20 4:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 12:22 [PATCH 0/8] ACPI _CRS CSI-2 and MIPI DisCo for Imaging support Sakari Ailus
2023-01-17 12:22 ` [PATCH 1/8] ACPI: property: Parse data node string references in properties Sakari Ailus
2023-01-17 14:29 ` Andy Shevchenko
2023-01-19 14:03 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 2/8] ACPI: property: Parse _CRS CSI-2 descriptor Sakari Ailus
2023-01-17 14:34 ` Andy Shevchenko
2023-01-19 14:04 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 3/8] device property: Add SOFTWARE_NODE() macro for defining software nodes Sakari Ailus
2023-01-17 14:35 ` Andy Shevchenko
2023-01-17 14:37 ` Andy Shevchenko
2023-01-17 14:37 ` Andy Shevchenko
2023-01-17 12:22 ` [PATCH 4/8] ACPI: property: Generate camera swnodes for ACPI and DisCo for Imaging Sakari Ailus
2023-01-17 14:59 ` Andy Shevchenko
2023-01-19 15:03 ` Sakari Ailus
2023-01-19 15:44 ` Andy Shevchenko
2023-01-23 11:15 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 5/8] ACPI: property: Dig "rotation" property for devices with CSI2 _CRS Sakari Ailus
2023-01-17 15:22 ` Andy Shevchenko
2023-01-19 15:40 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 6/8] ACPI: property: Rename parsed MIPI DisCo for Imaging properties Sakari Ailus
2023-01-17 15:27 ` Andy Shevchenko
2023-01-19 15:45 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 7/8] ACPI: property: Skip MIPI property table without "mipi-img" prefix Sakari Ailus
2023-01-17 15:29 ` Andy Shevchenko
2023-01-19 15:51 ` Sakari Ailus
2023-01-19 16:09 ` Andy Shevchenko [this message]
2023-01-19 16:11 ` Andy Shevchenko
2023-01-20 12:07 ` Sakari Ailus
2023-01-20 13:59 ` Andy Shevchenko
2023-01-20 11:58 ` Sakari Ailus
2023-01-20 15:11 ` Andy Shevchenko
2023-01-20 22:34 ` Sakari Ailus
2023-01-17 12:22 ` [PATCH 8/8] ACPI: property: Document _CRS CSI-2 and DisCo for Imaging support Sakari Ailus
2023-01-17 15:32 ` Andy Shevchenko
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