On Thursday 14 June 2012, Roland Stigge wrote: > --- linux-2.6.orig/arch/arm/mach-lpc32xx/phy3250.c > +++ linux-2.6/arch/arm/mach-lpc32xx/phy3250.c > @@ -226,7 +226,38 @@ static int __init phy3250_spi_board_regi > } > arch_initcall(phy3250_spi_board_register); > > +static struct pl08x_channel_data pl08x_slave_channels[] = { > + { > + .bus_id = "nand-slc", > + .min_signal = 1, /* SLC NAND Flash */ > + .max_signal = 1, > + .periph_buses = PL08X_AHB1, > + }, > + { > + .bus_id = "nand-mlc", > + .min_signal = 12, /* MLC NAND Flash */ > + .max_signal = 12, > + .periph_buses = PL08X_AHB1, > + }, > +}; > + > +/* NOTE: These will change, according to RMK */ > +static int pl08x_get_signal(struct pl08x_dma_chan *ch) > +{ > + return ch->cd->min_signal; > +} > +
This has changed now, rendering linux-next broken for lpc32xx_defconfig: /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:190:36: warning: 'struct pl08x_dma_chan' declared inside parameter list [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:190:36: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c: In function 'pl08x_get_signal': /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:192:11: error: dereferencing pointer to incomplete type /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c: At top level: /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:195:37: warning: 'struct pl08x_dma_chan' declared inside parameter list [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:202:2: warning: initialization from incompatible pointer type [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:202:2: warning: (near initialization for 'pl08x_pd.get_signal') [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:203:2: warning: initialization from incompatible pointer type [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:203:2: warning: (near initialization for 'pl08x_pd.put_signal') [enabled by default] /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c: In function 'pl08x_get_signal': /home/arnd/linux-arm/arch/arm/mach-lpc32xx/phy3250.c:193:1: warning: control reaches end of non-void function [-Wreturn-type] /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c: In function 'lpc32xx_dma_filter': /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c:720:48: error: dereferencing pointer to incomplete type /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c:720:67: warning: initialization from incompatible pointer type [enabled by default] /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c:720:67: warning: (near initialization for 'ch') [enabled by default] /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c:720:145: error: invalid use of undefined type 'struct pl08x_dma_chan' /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_slc.c:723:8: error: dereferencing pointer to incomplete type make[4]: *** [drivers/mtd/nand/lpc32xx_slc.o] Error 1 /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c: In function 'lpc32xx_dma_filter': /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c:582:48: error: dereferencing pointer to incomplete type /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c:582:67: warning: initialization from incompatible pointer type [enabled by default] /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c:582:67: warning: (near initialization for 'ch') [enabled by default] /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c:582:145: error: invalid use of undefined type 'struct pl08x_dma_chan' /home/arnd/linux-arm/drivers/mtd/nand/lpc32xx_mlc.c:585:8: error: dereferencing pointer to incomplete type make[4]: *** [drivers/mtd/nand/lpc32xx_mlc.o] Error 1 As far as I can tell, each branch touching these files is ok individually, but they don't go together. There is also this bit of suspicious code in lpc32xx_slc: static bool lpc32xx_dma_filter(struct dma_chan *chan, void *param) { struct pl08x_dma_chan *ch = container_of(chan, struct pl08x_dma_chan, chan); /* In LPC32xx's PL080 DMA wiring, the SLC NAND DMA signal is #1 */ if (ch->cd->min_signal == 1) return true; return false; } I dont't think that actually valid -- you cannot make any assumption about the structure outside of dma_chan here, only about the parameter you pass in. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/