* [PATCH] cifs: use memcpy for magic string in cifs signature generation BSRSPYL
@ 2011-08-20 1:19 Jeff Layton
[not found] ` <1313803157-31952-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Jeff Layton @ 2011-08-20 1:19 UTC (permalink / raw)
To: smfrench-Re5JQEeQqe8AvxtiuMwx3w; +Cc: linux-cifs-u79uwXL29TY76Z2rM5mHXA
...it's more efficient since we know the length.
Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
fs/cifs/cifsencrypt.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index e76bfeb..f11dfb6 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -92,7 +92,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
return rc;
if (!server->session_estab) {
- strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8);
+ memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8);
return rc;
}
@@ -189,7 +189,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
return rc;
if (!server->session_estab) {
- strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8);
+ memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8);
return rc;
}
--
1.7.6
^ permalink raw reply related [flat|nested] 3+ messages in thread[parent not found: <1313803157-31952-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]
* Re: [PATCH] cifs: use memcpy for magic string in cifs signature generation BSRSPYL [not found] ` <1313803157-31952-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> @ 2011-08-24 6:30 ` Suresh Jayaraman [not found] ` <4E549A73.9020801-l3A5Bk7waGM@public.gmane.org> 0 siblings, 1 reply; 3+ messages in thread From: Suresh Jayaraman @ 2011-08-24 6:30 UTC (permalink / raw) To: Jeff Layton Cc: smfrench-Re5JQEeQqe8AvxtiuMwx3w, linux-cifs-u79uwXL29TY76Z2rM5mHXA On 08/20/2011 06:49 AM, Jeff Layton wrote: > ...it's more efficient since we know the length. > > Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> > --- > fs/cifs/cifsencrypt.c | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c > index e76bfeb..f11dfb6 100644 > --- a/fs/cifs/cifsencrypt.c > +++ b/fs/cifs/cifsencrypt.c > @@ -92,7 +92,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, > return rc; > > if (!server->session_estab) { > - strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > + memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > return rc; > } > > @@ -189,7 +189,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, > return rc; > > if (!server->session_estab) { > - strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > + memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > return rc; > } > Looks good to me. Reviewed-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> Any reason why some of the strncpy/strncmp cases were only picked up among the rest? May be depending on how hot the code path is? ^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <4E549A73.9020801-l3A5Bk7waGM@public.gmane.org>]
* Re: [PATCH] cifs: use memcpy for magic string in cifs signature generation BSRSPYL [not found] ` <4E549A73.9020801-l3A5Bk7waGM@public.gmane.org> @ 2011-08-24 10:48 ` Jeff Layton 0 siblings, 0 replies; 3+ messages in thread From: Jeff Layton @ 2011-08-24 10:48 UTC (permalink / raw) To: Suresh Jayaraman Cc: smfrench-Re5JQEeQqe8AvxtiuMwx3w, linux-cifs-u79uwXL29TY76Z2rM5mHXA On Wed, 24 Aug 2011 12:00:11 +0530 Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote: > On 08/20/2011 06:49 AM, Jeff Layton wrote: > > ...it's more efficient since we know the length. > > > > Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> > > --- > > fs/cifs/cifsencrypt.c | 4 ++-- > > 1 files changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c > > index e76bfeb..f11dfb6 100644 > > --- a/fs/cifs/cifsencrypt.c > > +++ b/fs/cifs/cifsencrypt.c > > @@ -92,7 +92,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, > > return rc; > > > > if (!server->session_estab) { > > - strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > > + memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > > return rc; > > } > > > > @@ -189,7 +189,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, > > return rc; > > > > if (!server->session_estab) { > > - strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > > + memcpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); > > return rc; > > } > > > > > Looks good to me. > > Reviewed-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> > > Any reason why some of the strncpy/strncmp cases were only picked up > among the rest? May be depending on how hot the code path is? > Simply because that's where I noticed them. If you see other places that could benefit, then it's probably reasonable to patch them too. -- Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-08-24 10:48 UTC | newest]
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2011-08-20 1:19 [PATCH] cifs: use memcpy for magic string in cifs signature generation BSRSPYL Jeff Layton
[not found] ` <1313803157-31952-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-08-24 6:30 ` Suresh Jayaraman
[not found] ` <4E549A73.9020801-l3A5Bk7waGM@public.gmane.org>
2011-08-24 10:48 ` Jeff Layton
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