Looks like this has already been fixed in commit 513d9a61156d79dd0979c4ad400c8587f52cbb9d On Tue, Sep 13, 2022 at 11:48 AM Philipp Hortmann <philipp.g.hortmann@xxxxxxxxx> wrote: > > On 9/12/22 23:45, Nathan Huckleberry wrote: > > The ndo_start_xmit field in net_device_ops is expected to be of type > > netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev). > > > > The mismatched return type breaks forward edge kCFI since the underlying > > function definition does not match the function hook definition. > > > > The return type of rtllib_xmit should be changed from int to > > netdev_tx_t. > > > > Reported-by: Dan Carpenter<error27@xxxxxxxxx> > > Link:https://github.com/ClangBuiltLinux/linux/issues/1703 > > Cc:llvm@xxxxxxxxxxxxxxx > > Signed-off-by: Nathan Huckleberry<nhuck@xxxxxxxxxx> > > --- > > drivers/staging/rtl8192e/rtllib_tx.c | 8 ++++---- > > 1 file changed, 4 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c > > index 42f81b23a144..1b665afd309e 100644 > > --- a/drivers/staging/rtl8192e/rtllib_tx.c > > +++ b/drivers/staging/rtl8192e/rtllib_tx.c > > Hi, > > I cannot apply your patch. > > Applying: Staging: rtl8192e: Fix return type of rtllib_xmit > error: patch failed: drivers/staging/rtl8192e/rtllib_tx.c:962 > error: drivers/staging/rtl8192e/rtllib_tx.c: patch does not apply > Patch failed at 0001 Staging: rtl8192e: Fix return type of rtllib_xmit > > git remote show origin > * remote origin > Fetch URL: > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git > ... > my branch: staging-testing > > Bye Philipp