On Mon, Jul 22, 2019 at 05:43:07PM -0700, Ira Weiny wrote:
> > diff --git a/drivers/crypto/chelsio/chtls/chtls_io.c
> > b/drivers/crypto/chelsio/chtls/chtls_io.c
> > index 551bca6fef24..925be5942895 100644
> > --- a/drivers/crypto/chelsio/chtls/chtls_io.c
> > +++ b/drivers/crypto/chelsio/chtls/chtls_io.c
> > @@ -1078,7 +1078,7 @@ int chtls_sendmsg(struct sock *sk, struct msghdr
> > *msg, size_t size)
> > bool merge;
> >
> > if (page)
> > - pg_size <<= compound_order(page);
> > + pg_size = page_size(page);
> > if (off < pg_size &&
> > skb_can_coalesce(skb, i, page, off)) {
> > merge = 1;
> > @@ -1105,8 +1105,7 @@ int chtls_sendmsg(struct sock *sk, struct msghdr
> > *msg, size_t size)
> > __GFP_NORETRY,
> > order);
> > if (page)
> > - pg_size <<=
> > - compound_order(page);
> > + pg_size <<= order;
>
> Looking at the code I see pg_size should be PAGE_SIZE right before this so why
> not just use the new call and remove the initial assignment?
This driver is really convoluted. I wasn't certain I wouldn't break it
in some horrid way. I made larger changes to it originally, then they
touched this part of the driver and I had to rework the patch to apply
on top of their changes. So I did something more minimal.
This, on top of what's in Andrew's tree, would be my guess, but I don't
have the hardware.
diff --git a/drivers/crypto/chelsio/chtls/chtls_io.c
b/drivers/crypto/chelsio/chtls/chtls_io.c
index 925be5942895..d4eb0fcd04c7 100644
--- a/drivers/crypto/chelsio/chtls/chtls_io.c
+++ b/drivers/crypto/chelsio/chtls/chtls_io.c
@@ -1073,7 +1073,7 @@ int chtls_sendmsg(struct sock *sk, struct msghdr *msg,
size_t size)
} else {
int i = skb_shinfo(skb)->nr_frags;
struct page *page = TCP_PAGE(sk);
- int pg_size = PAGE_SIZE;
+ unsigned int pg_size = 0;
int off = TCP_OFF(sk);
bool merge;
@@ -1092,7 +1092,7 @@ int chtls_sendmsg(struct sock *sk, struct msghdr *msg,
size_t size)
if (page && off == pg_size) {
put_page(page);
TCP_PAGE(sk) = page = NULL;
- pg_size = PAGE_SIZE;
+ pg_size = 0;
}
if (!page) {
@@ -1104,15 +1104,13 @@ int chtls_sendmsg(struct sock *sk, struct msghdr *msg,
size_t size)
__GFP_NOWARN |
__GFP_NORETRY,
order);
- if (page)
- pg_size <<= order;
}
if (!page) {
page = alloc_page(gfp);
- pg_size = PAGE_SIZE;
}
if (!page)
goto wait_for_memory;
+ pg_size = page_size(page);
off = 0;
}
copy:
