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    SubjectRe: 2.6.23-rc3-mm1: net/wireless/rt2x00mac.c build failure
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    On Wednesday, 22 August 2007 22:12, Ivo van Doorn wrote:
    > Hi,
    >
    > > CC [M] drivers/net/wireless/zd1211rw-mac80211/zd_mac.o
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c: In function `zd_op_erp_ie_changed':
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c:822: error: `IEEE80211_ERP_CHANGE_PREAMBLE' undeclared (first use in this function)
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c:822: error: (Each undeclared identifier is reported only once
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c:822: error: for each function it appears in.)
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c: At top level:
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c:844: error: unknown field `erp_ie_changed' specified in initializer
    > > drivers/net/wireless/zd1211rw-mac80211/zd_mac.c:844: warning: initialization from incompatible pointer type
    > > make[4]: *** [drivers/net/wireless/zd1211rw-mac80211/zd_mac.o] Error 1
    > > make[3]: *** [drivers/net/wireless/zd1211rw-mac80211] Error 2
    > > make[2]: *** [drivers/net/wireless] Error 2
    > > make[1]: *** [drivers/net] Error 2
    > > make: *** [drivers] Error 2
    >
    > I'm not a zd1211rw developer, but a quick look into the patch series it seems
    > that the mac80211 version in -mm1 does not contain the patch
    > [PATCH 4/4] mac80211: implement ERP info change notifications
    > But it does contain the zd1211rw patch:
    > [PATCH] zd1211rw-mac80211: use correct preambles for RTS/CTS frames
    > Which depended on the above mentioned mac80211 patch.
    >
    > Just had a second thought about those rt2x00 compilation errors you reported,
    > the error is not caused by rt2x00 lagging behind mac80211 api changes but
    > that rt2x00 patches to follow the api changes are going upstream but
    > the mac80211 api changes it depends on are not going anywhere.
    >
    > It seems that mac80211 has not been updated in the -mm tree while the
    > drivers have been updated. This is causing the compilation errors for both
    > rt2x00 as zd1211rw.
    > I'll bet that if you try any other mac80211 driver similar issues will arise.

    Yup. This also happens to the b43 driver, for example.

    Greetings,
    Rafael


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