Hi Rafał, [auto build test WARNING on wireless-drivers-next/master] [also build test WARNING on next-20170124] [cannot apply to v4.10-rc5] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Rafa-Mi-ecki/brcmfmac-switch-to-C-function-__brcmf_err-for-printing-errors/20170125-033714 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master config: i386-allyesconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c: In function 'brcmf_cfg80211_vndr_cmds_dcmd_handler': >> drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c:44:3: warning: 'pub' may be used uninitialized in this function [-Wmaybe-uninitialized] brcmf_err(pub, "vendor command too short: %d\n", len); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/pub +44 drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c 28 #include "fwil.h" 29 30 static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy, 31 struct wireless_dev *wdev, 32 const void *data, int len) 33 { 34 struct brcmf_cfg80211_vif *vif; 35 struct brcmf_if *ifp; 36 struct brcmf_pub *pub; 37 const struct brcmf_vndr_dcmd_hdr *cmdhdr = data; 38 struct sk_buff *reply; 39 int ret, payload, ret_len; 40 void *dcmd_buf = NULL, *wr_pointer; 41 u16 msglen, maxmsglen = PAGE_SIZE - 0x100; 42 43 if (len < sizeof(*cmdhdr)) { > 44 brcmf_err(pub, "vendor command too short: %d\n", len); 45 return -EINVAL; 46 } 47 48 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 49 ifp = vif->ifp; 50 pub = ifp->drvr; 51 52 brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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