| Message ID | 1432637918-8946-2-git-send-email-geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | Rejected |
| Delegated to: | Simon Horman |
| Headers | show |
Hi Laurent, On Tue, May 26, 2015 at 2:26 PM, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > On Tuesday 26 May 2015 12:58:38 Geert Uytterhoeven wrote: >> Make USB support modular to reduce kernel size: > > This means we lose support for NFS root on USB-based ethernet controllers. I'm > not sure that's a very good idea. That's true... Enabling the USB network drivers is one thing I can easily do myself. But I don't know on which boards they are used, and which USB host controller drivers are needed. P.S. Strange, USB_NET_DRIVERS is tristate, but setting it to "y" doesn't mean all USB network drivers become builtin, as USB_NET_DRIVERS is never used in a "depends" construct... Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wednesday 27 May 2015 11:07:15 Geert Uytterhoeven wrote: > > P.S. Strange, USB_NET_DRIVERS is tristate, but setting it to "y" doesn't > mean all USB network drivers become builtin, as USB_NET_DRIVERS is never > used in a "depends" construct... > The 'if USB_NET_DRIVERS' has the same effect as putting a 'depends on' in each Kconfig option within. However, it works the opposite way: if USB_NET_DRIVERS=m, the individual drivers cannot by 'y', but if USB_NET_DRIVERS=y, they can be 'y', 'm' or 'n'. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index e3fc9799972367c3..5df66b3671946378 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -215,10 +215,10 @@ CONFIG_SMSC_PHY=y CONFIG_BROADCOM_PHY=y CONFIG_ICPLUS_PHY=y CONFIG_MICREL_PHY=y -CONFIG_USB_PEGASUS=y -CONFIG_USB_USBNET=y -CONFIG_USB_NET_SMSC75XX=y -CONFIG_USB_NET_SMSC95XX=y +CONFIG_USB_PEGASUS=m +CONFIG_USB_USBNET=m +CONFIG_USB_NET_SMSC75XX=m +CONFIG_USB_NET_SMSC95XX=m CONFIG_BRCMFMAC=m CONFIG_RT2X00=m CONFIG_RT2800USB=m @@ -417,8 +417,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y CONFIG_MEDIA_CONTROLLER=y CONFIG_VIDEO_V4L2_SUBDEV_API=y CONFIG_MEDIA_USB_SUPPORT=y -CONFIG_USB_VIDEO_CLASS=y -CONFIG_USB_GSPCA=y +CONFIG_USB_VIDEO_CLASS=m CONFIG_V4L_PLATFORM_DRIVERS=y CONFIG_SOC_CAMERA=m CONFIG_SOC_CAMERA_PLATFORM=m @@ -452,7 +451,7 @@ CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y CONFIG_SOUND=y CONFIG_SND=y CONFIG_SND_DYNAMIC_MINORS=y -CONFIG_SND_USB_AUDIO=y +CONFIG_SND_USB_AUDIO=m CONFIG_SND_SOC=y CONFIG_SND_ATMEL_SOC=m CONFIG_SND_ATMEL_SOC_WM8904=m @@ -467,24 +466,22 @@ CONFIG_SND_SOC_TEGRA_ALC5632=y CONFIG_SND_SOC_TEGRA_MAX98090=y CONFIG_SND_SOC_AK4642=m CONFIG_SND_SOC_WM8978=m -CONFIG_USB=y -CONFIG_USB_XHCI_HCD=y -CONFIG_USB_XHCI_MVEBU=y -CONFIG_USB_EHCI_HCD=y -CONFIG_USB_EHCI_EXYNOS=y -CONFIG_USB_EHCI_TEGRA=y -CONFIG_USB_EHCI_HCD_STI=y -CONFIG_USB_EHCI_HCD_PLATFORM=y -CONFIG_USB_ISP1760=y -CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_STI=y -CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB=m +CONFIG_USB_XHCI_HCD=m +CONFIG_USB_XHCI_MVEBU=m +CONFIG_USB_EHCI_HCD=m +CONFIG_USB_EHCI_HCD_STI=m +CONFIG_USB_EHCI_TEGRA=m +CONFIG_USB_EHCI_EXYNOS=m +CONFIG_USB_ISP1760=m +CONFIG_USB_OHCI_HCD=m +CONFIG_USB_OHCI_HCD_STI=m CONFIG_USB_OHCI_EXYNOS=m CONFIG_USB_R8A66597_HCD=m CONFIG_USB_RENESAS_USBHS=m -CONFIG_USB_STORAGE=y +CONFIG_USB_STORAGE=m CONFIG_USB_DWC3=y -CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA=m CONFIG_USB_CHIPIDEA_HOST=y CONFIG_AB8500_USB=y CONFIG_KEYSTONE_USB_PHY=y @@ -632,7 +629,6 @@ CONFIG_PHY_STIH41X_USB=y CONFIG_PHY_STIH407_USB=y CONFIG_PHY_SUN4I_USB=y CONFIG_PHY_SUN9I_USB=y -CONFIG_PHY_SAMSUNG_USB2=m CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_MSDOS_FS=y
Make USB support modular to reduce kernel size: text data bss dec hex filename 12979266 1433908 335640 14748814 e10c8e vmlinux.before 12237024 1386396 333592 13957012 d4f794 vmlinux.after USB_GSPCA, USB_EHCI_HCD_PLATFORM, USB_OHCI_HCD_PLATFORM, and PHY_SAMSUNG_USB2 are now enabled automatically by Kconfig logic, so they are dropped. Tested on r8a7791/koelsch, which can't boot vmlinux.before anymore. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- Against next-20150526 --- arch/arm/configs/multi_v7_defconfig | 40 +++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 22 deletions(-)