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: