Re: OMAP34xx

[Tony Lindgren <tony@atomide.com>]

* Russell King - ARM Linux <linux@arm.linux.org.uk> [120204 12:03]:
> 
> Another problem (some build errors for OMAP3) do seem to be solved, but
> not the section mismatch warnings.  They're easy to verify before code
> gets pushed anywhere upstream, especially if you're doing one giant OMAP
> build - just enable CONFIG_DEBUG_SECTION_MISMATCH in your build
> configuration.  Refuse patches which introduce section mismatches - at
> least without an explanation backing up why they do.
>
> My OMAP3 and OMAP4 configurations spit out these - I've not even tried
> my OMAP2 configuration yet:

Weird. The warnings you're seeing all seem valid to me, but I'm not seeing
any the section warnings with the following compilers I have:

gcc version 4.3.5 (Debian 4.3.5-4)
gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203)
gcc version 4.6.1 (Sourcery CodeBench Lite 2011.09-70)

I see _different_ warnings if I compile with an older gcc:
gcc version 4.2.1 (CodeSourcery Sourcery G++ Lite 2007q3-51)

Any ideas why that would be?

The only warnings I see are:

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x19a4): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x19a8): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x19ac): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x19b0): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x19b4): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x12b70): Section mismatch in reference from the function cm_t35_init_usbh() to the (unknown reference) .init.data:(unknown)
The function cm_t35_init_usbh() references
the (unknown reference) __initdata (unknown).
This is often because cm_t35_init_usbh lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x1c424): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x1c428): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x1c42c): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x1c430): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x1c434): Section mismatch in reference from the function omap_serial_fill_default_pads() to the (unknown reference) .init.data:(unknown)
The function omap_serial_fill_default_pads() references
the (unknown reference) __initdata (unknown).
This is often because omap_serial_fill_default_pads lacks a __initdata 
annotation or the annotation of (unknown) is wrong.

WARNING: vmlinux.o(.text+0x2d5f0): Section mismatch in reference from the function cm_t35_init_usbh() to the (unknown reference) .init.data:(unknown)
The function cm_t35_init_usbh() references
the (unknown reference) __initdata (unknown).
This is often because cm_t35_init_usbh lacks a __initdata 
annotation or the annotation of (unknown) is wrong.