From: Pavel Machek <pavel@ucw.cz> To: "Pali Rohár" <pali.rohar@gmail.com> Cc: Russell King <linux@armlinux.org.uk>, Arnd Bergmann <arnd@arndb.de>, Robin Murphy <robin.murphy@arm.com>, Linus Walleij <linus.walleij@linaro.org>, Ben Dooks <ben-linux@fluff.org>, Tony Lindgren <tony@atomide.com>, Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>, Sebastian Reichel <sre@kernel.org>, Aaro Koskinen <aaro.koskinen@iki.fi>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm: dt: Initialize boot_command_line from CONFIG_CMDLINE in case DT does not provide /chosen/bootargs Date: Wed, 14 Dec 2016 22:25:56 +0100 [thread overview] Message-ID: <20161214212556.GC28424@amd> (raw) In-Reply-To: <1481749963-8664-1-git-send-email-pali.rohar@gmail.com> [-- Attachment #1: Type: text/plain, Size: 1379 bytes --] On Wed 2016-12-14 22:12:43, Pali Rohár wrote: > Commit 008a2ebcd677 ("ARM: dts: omap3: Remove skeleton.dtsi usage") broke > support for setting cmdline on Nokia N900 via CONFIG_CMDLINE. > > It is because arm code booted in DT mode parse cmdline only via function > early_init_dt_scan_chosen() and that function does not fill variable > boot_command_line when DTB does not contain /chosen entry. It is called > from function early_init_dt_scan_nodes() in setup_machine_fdt(). > > This patch fixes it by explicitly filling boot_command_line in function > setup_machine_fdt() after calling early_init_dt_scan_nodes() in case > boot_command_line still remains empty. > > Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> > --- a/arch/arm/kernel/devtree.c > +++ b/arch/arm/kernel/devtree.c > @@ -260,6 +260,11 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys) > > early_init_dt_scan_nodes(); > > +#ifdef CONFIG_CMDLINE > + if (!boot_command_line[0]) > + strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); > +#endif > + > /* Change machine number to match the mdesc we're using */ > __machine_arch_type = mdesc->nr; > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 181 bytes --]
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From: pavel@ucw.cz (Pavel Machek) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] arm: dt: Initialize boot_command_line from CONFIG_CMDLINE in case DT does not provide /chosen/bootargs Date: Wed, 14 Dec 2016 22:25:56 +0100 [thread overview] Message-ID: <20161214212556.GC28424@amd> (raw) In-Reply-To: <1481749963-8664-1-git-send-email-pali.rohar@gmail.com> On Wed 2016-12-14 22:12:43, Pali Roh?r wrote: > Commit 008a2ebcd677 ("ARM: dts: omap3: Remove skeleton.dtsi usage") broke > support for setting cmdline on Nokia N900 via CONFIG_CMDLINE. > > It is because arm code booted in DT mode parse cmdline only via function > early_init_dt_scan_chosen() and that function does not fill variable > boot_command_line when DTB does not contain /chosen entry. It is called > from function early_init_dt_scan_nodes() in setup_machine_fdt(). > > This patch fixes it by explicitly filling boot_command_line in function > setup_machine_fdt() after calling early_init_dt_scan_nodes() in case > boot_command_line still remains empty. > > Signed-off-by: Pali Roh?r <pali.rohar@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> > --- a/arch/arm/kernel/devtree.c > +++ b/arch/arm/kernel/devtree.c > @@ -260,6 +260,11 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys) > > early_init_dt_scan_nodes(); > > +#ifdef CONFIG_CMDLINE > + if (!boot_command_line[0]) > + strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); > +#endif > + > /* Change machine number to match the mdesc we're using */ > __machine_arch_type = mdesc->nr; > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20161214/aa1fd45b/attachment.sig>
next prev parent reply other threads:[~2016-12-14 21:33 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-12-14 21:12 [PATCH] arm: dt: Initialize boot_command_line from CONFIG_CMDLINE in case DT does not provide /chosen/bootargs Pali Rohár 2016-12-14 21:12 ` Pali Rohár 2016-12-14 21:25 ` Pavel Machek [this message] 2016-12-14 21:25 ` Pavel Machek 2016-12-14 21:46 ` Tony Lindgren 2016-12-14 21:46 ` Tony Lindgren 2016-12-14 22:22 ` Javier Martinez Canillas 2016-12-14 22:22 ` Javier Martinez Canillas 2016-12-14 23:52 ` Russell King - ARM Linux 2016-12-14 23:52 ` Russell King - ARM Linux 2016-12-15 0:09 ` Pali Rohár 2016-12-15 0:09 ` Pali Rohár 2016-12-15 0:18 ` Robin Murphy 2016-12-15 0:18 ` Robin Murphy 2016-12-15 10:09 ` Russell King - ARM Linux 2016-12-15 10:09 ` Russell King - ARM Linux 2016-12-16 11:42 ` Pali Rohár 2016-12-16 11:42 ` Pali Rohár 2016-12-25 22:08 ` Pali Rohár 2016-12-25 22:08 ` Pali Rohár 2017-01-02 13:54 ` Russell King - ARM Linux 2017-01-02 13:54 ` Russell King - ARM Linux 2016-12-16 11:46 ` Pali Rohár 2016-12-16 11:46 ` Pali Rohár 2016-12-16 12:13 ` Javier Martinez Canillas 2016-12-16 12:13 ` Javier Martinez Canillas 2016-12-16 12:32 ` Pali Rohár 2016-12-16 12:32 ` Pali Rohár 2016-12-16 12:38 ` Javier Martinez Canillas 2016-12-16 12:38 ` Javier Martinez Canillas 2016-12-16 12:48 ` Pali Rohár 2016-12-16 12:48 ` Pali Rohár 2016-12-16 12:53 ` Javier Martinez Canillas 2016-12-16 12:53 ` Javier Martinez Canillas 2016-12-16 15:40 ` Tony Lindgren 2016-12-16 15:40 ` Tony Lindgren 2016-12-16 16:13 ` Pali Rohár 2016-12-16 16:13 ` Pali Rohár 2016-12-16 16:21 ` Tony Lindgren 2016-12-16 16:21 ` Tony Lindgren 2016-12-16 16:27 ` Russell King - ARM Linux 2016-12-16 16:27 ` Russell King - ARM Linux 2016-12-16 16:57 ` Mark Rutland 2016-12-16 16:57 ` Mark Rutland
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