| Message ID | eac139a7-76d4-4067-8c25-15e30692aaf9@moroto.mountain (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/3] cifs: delete unnecessary NULL checks in cifs_chan_update_iface() | expand |
Le 08/01/2024 à 10:08, Dan Carpenter a écrit : > The return values for cifs_chan_update_iface() didn't match what the > documentation said and nothing was checking them anyway. Just make it > a void function. > > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > --- > fs/smb/client/cifsproto.h | 2 +- > fs/smb/client/sess.c | 17 +++++++---------- > 2 files changed, 8 insertions(+), 11 deletions(-) > > diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h > index afbab86331a1..a841bf4967fa 100644 > --- a/fs/smb/client/cifsproto.h > +++ b/fs/smb/client/cifsproto.h > @@ -656,7 +656,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses, > struct TCP_Server_Info *server); > void > cifs_disable_secondary_channels(struct cifs_ses *ses); > -int > +void > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server); > int > SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount); > diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c > index 775c6a4a2f4b..f7b216dd06b2 100644 > --- a/fs/smb/client/sess.c > +++ b/fs/smb/client/sess.c > @@ -356,10 +356,9 @@ cifs_disable_secondary_channels(struct cifs_ses *ses) > > /* > * update the iface for the channel if necessary. > - * will return 0 when iface is updated, 1 if removed, 2 otherwise > * Must be called with chan_lock held. > */ > -int > +void > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > { > unsigned int chan_index; > @@ -368,20 +367,19 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > struct cifs_server_iface *old_iface = NULL; > struct cifs_server_iface *last_iface = NULL; > struct sockaddr_storage ss; > - int rc = 0; > > spin_lock(&ses->chan_lock); > chan_index = cifs_ses_get_chan_index(ses, server); > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > spin_unlock(&ses->chan_lock); > - return 0; > + return; > } > > if (ses->chans[chan_index].iface) { > old_iface = ses->chans[chan_index].iface; > if (old_iface->is_active) { > spin_unlock(&ses->chan_lock); > - return 1; > + return; > } > } > spin_unlock(&ses->chan_lock); > @@ -394,7 +392,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > if (!ses->iface_count) { > spin_unlock(&ses->iface_lock); > cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname); > - return 0; > + return; > } > > last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface, > @@ -434,7 +432,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > } > > if (list_entry_is_head(iface, &ses->iface_list, iface_head)) { > - rc = 1; > iface = NULL; > cifs_dbg(FYI, "unable to find a suitable iface\n"); > } > @@ -449,7 +446,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > } > > spin_unlock(&ses->iface_lock); > - return 0; > + return; > } > > /* now drop the ref to the current iface */ > @@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > chan_index = cifs_ses_get_chan_index(ses, server); > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > spin_unlock(&ses->chan_lock); > - return 0; > + return; > } > > ses->chans[chan_index].iface = iface; > spin_unlock(&ses->chan_lock); > > - return rc; > + return; just remove this one? CJ > } > > /*
added the trivial change Christophe Suggested On Mon, Jan 8, 2024 at 1:09 PM Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote: > > Le 08/01/2024 à 10:08, Dan Carpenter a écrit : > > The return values for cifs_chan_update_iface() didn't match what the > > documentation said and nothing was checking them anyway. Just make it > > a void function. > > > > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > > --- > > fs/smb/client/cifsproto.h | 2 +- > > fs/smb/client/sess.c | 17 +++++++---------- > > 2 files changed, 8 insertions(+), 11 deletions(-) > > > > diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h > > index afbab86331a1..a841bf4967fa 100644 > > --- a/fs/smb/client/cifsproto.h > > +++ b/fs/smb/client/cifsproto.h > > @@ -656,7 +656,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses, > > struct TCP_Server_Info *server); > > void > > cifs_disable_secondary_channels(struct cifs_ses *ses); > > -int > > +void > > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server); > > int > > SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount); > > diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c > > index 775c6a4a2f4b..f7b216dd06b2 100644 > > --- a/fs/smb/client/sess.c > > +++ b/fs/smb/client/sess.c > > @@ -356,10 +356,9 @@ cifs_disable_secondary_channels(struct cifs_ses *ses) > > > > /* > > * update the iface for the channel if necessary. > > - * will return 0 when iface is updated, 1 if removed, 2 otherwise > > * Must be called with chan_lock held. > > */ > > -int > > +void > > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > { > > unsigned int chan_index; > > @@ -368,20 +367,19 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > struct cifs_server_iface *old_iface = NULL; > > struct cifs_server_iface *last_iface = NULL; > > struct sockaddr_storage ss; > > - int rc = 0; > > > > spin_lock(&ses->chan_lock); > > chan_index = cifs_ses_get_chan_index(ses, server); > > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > > spin_unlock(&ses->chan_lock); > > - return 0; > > + return; > > } > > > > if (ses->chans[chan_index].iface) { > > old_iface = ses->chans[chan_index].iface; > > if (old_iface->is_active) { > > spin_unlock(&ses->chan_lock); > > - return 1; > > + return; > > } > > } > > spin_unlock(&ses->chan_lock); > > @@ -394,7 +392,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > if (!ses->iface_count) { > > spin_unlock(&ses->iface_lock); > > cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname); > > - return 0; > > + return; > > } > > > > last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface, > > @@ -434,7 +432,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > } > > > > if (list_entry_is_head(iface, &ses->iface_list, iface_head)) { > > - rc = 1; > > iface = NULL; > > cifs_dbg(FYI, "unable to find a suitable iface\n"); > > } > > @@ -449,7 +446,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > } > > > > spin_unlock(&ses->iface_lock); > > - return 0; > > + return; > > } > > > > /* now drop the ref to the current iface */ > > @@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > chan_index = cifs_ses_get_chan_index(ses, server); > > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > > spin_unlock(&ses->chan_lock); > > - return 0; > > + return; > > } > > > > ses->chans[chan_index].iface = iface; > > spin_unlock(&ses->chan_lock); > > > > - return rc; > > + return; > > just remove this one? > > CJ > > > } > > > > /* > >
merged into cifs-2.6.git for-next On Mon, Jan 8, 2024 at 3:08 AM Dan Carpenter <dan.carpenter@linaro.org> wrote: > > The return values for cifs_chan_update_iface() didn't match what the > documentation said and nothing was checking them anyway. Just make it > a void function. > > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > --- > fs/smb/client/cifsproto.h | 2 +- > fs/smb/client/sess.c | 17 +++++++---------- > 2 files changed, 8 insertions(+), 11 deletions(-) > > diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h > index afbab86331a1..a841bf4967fa 100644 > --- a/fs/smb/client/cifsproto.h > +++ b/fs/smb/client/cifsproto.h > @@ -656,7 +656,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses, > struct TCP_Server_Info *server); > void > cifs_disable_secondary_channels(struct cifs_ses *ses); > -int > +void > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server); > int > SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount); > diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c > index 775c6a4a2f4b..f7b216dd06b2 100644 > --- a/fs/smb/client/sess.c > +++ b/fs/smb/client/sess.c > @@ -356,10 +356,9 @@ cifs_disable_secondary_channels(struct cifs_ses *ses) > > /* > * update the iface for the channel if necessary. > - * will return 0 when iface is updated, 1 if removed, 2 otherwise > * Must be called with chan_lock held. > */ > -int > +void > cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > { > unsigned int chan_index; > @@ -368,20 +367,19 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > struct cifs_server_iface *old_iface = NULL; > struct cifs_server_iface *last_iface = NULL; > struct sockaddr_storage ss; > - int rc = 0; > > spin_lock(&ses->chan_lock); > chan_index = cifs_ses_get_chan_index(ses, server); > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > spin_unlock(&ses->chan_lock); > - return 0; > + return; > } > > if (ses->chans[chan_index].iface) { > old_iface = ses->chans[chan_index].iface; > if (old_iface->is_active) { > spin_unlock(&ses->chan_lock); > - return 1; > + return; > } > } > spin_unlock(&ses->chan_lock); > @@ -394,7 +392,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > if (!ses->iface_count) { > spin_unlock(&ses->iface_lock); > cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname); > - return 0; > + return; > } > > last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface, > @@ -434,7 +432,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > } > > if (list_entry_is_head(iface, &ses->iface_list, iface_head)) { > - rc = 1; > iface = NULL; > cifs_dbg(FYI, "unable to find a suitable iface\n"); > } > @@ -449,7 +446,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > } > > spin_unlock(&ses->iface_lock); > - return 0; > + return; > } > > /* now drop the ref to the current iface */ > @@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > chan_index = cifs_ses_get_chan_index(ses, server); > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > spin_unlock(&ses->chan_lock); > - return 0; > + return; > } > > ses->chans[chan_index].iface = iface; > spin_unlock(&ses->chan_lock); > > - return rc; > + return; > } > > /* > -- > 2.42.0 > >
On Mon, Jan 08, 2024 at 08:09:17PM +0100, Christophe JAILLET wrote: > > @@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) > > chan_index = cifs_ses_get_chan_index(ses, server); > > if (chan_index == CIFS_INVAL_CHAN_INDEX) { > > spin_unlock(&ses->chan_lock); > > - return 0; > > + return; > > } > > ses->chans[chan_index].iface = iface; > > spin_unlock(&ses->chan_lock); > > - return rc; > > + return; > > just remove this one? > Doh. Yeah. I'll send a v2 of this tomorrow. regards, dan carpenter
On Mon, Jan 08, 2024 at 10:41:35PM -0600, Steve French wrote: > added the trivial change Christophe Suggested > Thanks, Steve. regards, dan carpenter
diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h index afbab86331a1..a841bf4967fa 100644 --- a/fs/smb/client/cifsproto.h +++ b/fs/smb/client/cifsproto.h @@ -656,7 +656,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses, struct TCP_Server_Info *server); void cifs_disable_secondary_channels(struct cifs_ses *ses); -int +void cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server); int SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount); diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c index 775c6a4a2f4b..f7b216dd06b2 100644 --- a/fs/smb/client/sess.c +++ b/fs/smb/client/sess.c @@ -356,10 +356,9 @@ cifs_disable_secondary_channels(struct cifs_ses *ses) /* * update the iface for the channel if necessary. - * will return 0 when iface is updated, 1 if removed, 2 otherwise * Must be called with chan_lock held. */ -int +void cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) { unsigned int chan_index; @@ -368,20 +367,19 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) struct cifs_server_iface *old_iface = NULL; struct cifs_server_iface *last_iface = NULL; struct sockaddr_storage ss; - int rc = 0; spin_lock(&ses->chan_lock); chan_index = cifs_ses_get_chan_index(ses, server); if (chan_index == CIFS_INVAL_CHAN_INDEX) { spin_unlock(&ses->chan_lock); - return 0; + return; } if (ses->chans[chan_index].iface) { old_iface = ses->chans[chan_index].iface; if (old_iface->is_active) { spin_unlock(&ses->chan_lock); - return 1; + return; } } spin_unlock(&ses->chan_lock); @@ -394,7 +392,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) if (!ses->iface_count) { spin_unlock(&ses->iface_lock); cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname); - return 0; + return; } last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface, @@ -434,7 +432,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) } if (list_entry_is_head(iface, &ses->iface_list, iface_head)) { - rc = 1; iface = NULL; cifs_dbg(FYI, "unable to find a suitable iface\n"); } @@ -449,7 +446,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) } spin_unlock(&ses->iface_lock); - return 0; + return; } /* now drop the ref to the current iface */ @@ -478,13 +475,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) chan_index = cifs_ses_get_chan_index(ses, server); if (chan_index == CIFS_INVAL_CHAN_INDEX) { spin_unlock(&ses->chan_lock); - return 0; + return; } ses->chans[chan_index].iface = iface; spin_unlock(&ses->chan_lock); - return rc; + return; } /*
The return values for cifs_chan_update_iface() didn't match what the documentation said and nothing was checking them anyway. Just make it a void function. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> --- fs/smb/client/cifsproto.h | 2 +- fs/smb/client/sess.c | 17 +++++++---------- 2 files changed, 8 insertions(+), 11 deletions(-)