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SubjectRe: [PATCH FINAL] Merge the Sonics Silicon Backplane subsystem
On Sun, 29 Jul 2007 13:24:54 +0200 Michael Buesch <mb@bu3sch.de> wrote:

> The Sonics Silicon Backplane is a mini-bus used on
> various Broadcom chips and embedded devices.

Sigh.

s390:

drivers/ssb/main.c: In function 'ssb_ssb_read16':
drivers/ssb/main.c:489: error: implicit declaration of function 'readw'
drivers/ssb/main.c: In function 'ssb_ssb_read32':
drivers/ssb/main.c:497: error: implicit declaration of function 'readl'
drivers/ssb/main.c: In function 'ssb_ssb_write16':
drivers/ssb/main.c:505: error: implicit declaration of function 'writew'
drivers/ssb/main.c: In function 'ssb_ssb_write32':
drivers/ssb/main.c:513: error: implicit declaration of function 'writel'

we shouldn't be compiling SSB on s390, because:

config SSB
tristate "Sonics Silicon Backplane support"
depends on EXPERIMENTAL && HAS_IOMEM

and

akpm2:/usr/src/25> grep IOMEM .config
CONFIG_NO_IOMEM=y
akpm2:/usr/src/25>
but

akpm2:/usr/src/25> grep SSB .config
CONFIG_DCSSBLK=m
CONFIG_SSB=m
CONFIG_SSB_SILENT=y

well, how did that come about?

It _has_ to be `select'. It's _always_ `select'.

yup, it's `select':

Selected by: B44 && NETDEVICES && NET_ETHERNET || BCM43XX_MAC80211 && NETDEVICES && !S390 && MAC80211 && WLAN_80211 && EXPERIMENTAL

Look. Kconfig's `select' Just. Does. Not. Work. If you find yourself
contemplating using it, please, don sackcloth, take a cold shower and
several analgesics, then have another go, OK?

ho hum.

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