On Sun, 6 May 2007 22:44:29 +0200 Sam Ravnborg <[EMAIL PROTECTED]> wrote:
> On Sun, May 06, 2007 at 08:33:48AM +0400, Dan Kruchinin wrote: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21/2.6.21-mm1/ > > > > I have the following message after kernel compilation: > > > > --- > > ... > > WARNING: init/built-in.o - Section mismatch: reference to .init.text: > > from .text between 'rest_init' (at offset 0x11e) and 'try_name' > > Covered in another mail. > > > ... > > ... > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x20) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x24) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x28) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x2c) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x30) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x34) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x38) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x3c) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x40) > > WARNING: drivers/dma/async_tx.o - Section mismatch: reference to > > .init.data: from .data after 'channel_table' (at offset 0x44) > > We have following code: > /* guarantee that calls that happen before init will not find a channel */ > static struct chan_ref_percpu __initdata null_chan_ref[NR_CPUS]; > > static struct chan_ref_percpu *channel_table[] = { > DMA_TX_ARRAY_INIT(null_chan_ref) > }; > > The DMA_TX_ARRAY_INIT is some macro obscufation that serves no > real use and just hide a few assignements. > What happens here is that we assign channel_table a value > that are used as cover-up until the real assignment happens > in the init function. > So the only real way to fix this seems to remove the otherwise correct > __initdata mark on null_chan_ref. > Thats one pointer wasted pr. cpu (in total NR_CPUS). > (add Dan to cc) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
