diff options
Diffstat (limited to 'vmnet.patch')
| -rw-r--r-- | vmnet.patch | 120 |
1 files changed, 55 insertions, 65 deletions
diff --git a/vmnet.patch b/vmnet.patch index 82cf37ca89a5..5f1159bc7121 100644 --- a/vmnet.patch +++ b/vmnet.patch @@ -35,8 +35,56 @@ MODULEBUILDDIR=$(MODULEBUILDDIR) modules $(MAKE) -C $$PWD SRCROOT=$$PWD/$(SRCROOT) \ MODULEBUILDDIR=$(MODULEBUILDDIR) postbuild +--- a/vmnet/procfs.c ++++ a/vmnet/procfs.c +@@ -137,6 +137,7 @@ + } + + ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0) + /* + *---------------------------------------------------------------------- + * +@@ -168,6 +169,7 @@ + .release = single_release, + }; + #endif ++#endif + + + /* +@@ -203,7 +205,12 @@ + } else { + ent->data = data; + ent->fn = fn; ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0) ++ ent->pde = proc_create_single_data(name, mode, parent->pde, ++ VNetProcShow, ent); ++#else + ent->pde = proc_create_data(name, mode, parent->pde, &fops, ent); ++#endif + } + if (ent->pde != NULL) { + *ret = ent; --- a/vmnet/userif.c +++ b/vmnet/userif.c +@@ -78,11 +78,11 @@ + extern unsigned int vnet_max_qlen; + + #if COMPAT_LINUX_VERSION_CHECK_LT(3, 2, 0) +-# define compat_kmap(page) kmap(page) +-# define compat_kunmap(page) kunmap(page) +-#else +-# define compat_kmap(page) kmap((page).p) +-# define compat_kunmap(page) kunmap((page).p) ++# define skb_frag_page(frag) (frag)->page ++# define skb_frag_size(frag) (frag)->size ++#endif ++#if COMPAT_LINUX_VERSION_CHECK_LT(5, 4, 0) ++# define skb_frag_off(frag) (frag)->page_offset + #endif + + /* @@ -137,16 +137,21 @@ */ @@ -90,69 +138,12 @@ &recvClusterPage, &recvClusterCount)) < 0) { goto error_free; -From f404bc6855ea2c731b617d3b0a2971481eb31cbd Mon Sep 17 00:00:00 2001 -From: Michal Kubecek <mkubecek@suse.cz> -Date: Thu, 19 Sep 2019 12:20:20 +0200 -Subject: [PATCH] vmnet: handle switch of skb_frag_t to bio_vec - -The switch from custom skb_frag_t implementation to bio_vec in v5.4-rc1 is -mostly transparent for modules which use accessor for skb_frag_t members. -Unfortunately many users access the members directly and function -VNetCsumCopyDatagram() in vmnet is one of those. - -Use accessors everywhere so that vmnet code is compatible with kernel 5.4 -and newer. Use "compat_" prefix to avoid clashes with backports adding the -accessors to older codebase. ---- - vmnet-only/userif.c | 39 +++++++++++++++++++++++++++++---------- - 1 file changed, 29 insertions(+), 10 deletions(-) - -diff --git a/vmnet-only/userif.c b/vmnet-only/userif.c -index d385088..aab9478 100644 ---- a/vmnet-only/userif.c -+++ b/vmnet-only/userif.c -@@ -78,13 +78,31 @@ static int VNetUserIfSetUplinkState(VNetPort *port, uint8 linkUp); - extern unsigned int vnet_max_qlen; - - #if COMPAT_LINUX_VERSION_CHECK_LT(3, 2, 0) --# define compat_kmap(page) kmap(page) --# define compat_kunmap(page) kunmap(page) -+# define compat_kmap_frag(frag) kmap((frag)->page) -+# define compat_kunmap_frag(page) kunmap((frag)->page) - #else --# define compat_kmap(page) kmap((page).p) --# define compat_kunmap(page) kunmap((page).p) -+# define compat_kmap_frag(frag) kmap(skb_frag_page(frag)) -+# define compat_kunmap_frag(frag) kunmap(skb_frag_page(frag)) - #endif - -+static unsigned int compat_skb_frag_size(const skb_frag_t *frag) -+{ -+#if COMPAT_LINUX_VERSION_CHECK_LT(3, 2, 0) -+ return frag->size; -+#else -+ return skb_frag_size(frag); -+#endif -+} -+ -+static unsigned int compat_skb_frag_off(const skb_frag_t *frag) -+{ -+#if COMPAT_LINUX_VERSION_CHECK_LT(5, 4, 0) -+ return frag->page_offset; -+#else -+ return skb_frag_off(frag); -+#endif -+} -+ - /* - *----------------------------------------------------------------------------- - * -@@ -564,20 +582,21 @@ VNetCsumCopyDatagram(const struct sk_buff *skb, // IN: skb to copy +@@ -559,20 +564,20 @@ for (frag = skb_shinfo(skb)->frags; frag != skb_shinfo(skb)->frags + skb_shinfo(skb)->nr_frags; frag++) { - if (frag->size > 0) { -+ if (compat_skb_frag_size(frag) > 0) { ++ if (skb_frag_size(frag) > 0) { unsigned int tmpCsum; const void *vaddr; @@ -160,18 +151,17 @@ index d385088..aab9478 100644 - tmpCsum = csum_and_copy_to_user(vaddr + frag->page_offset, - curr, frag->size, 0, &err); - compat_kunmap(frag->page); -+ vaddr = compat_kmap_frag(frag); -+ tmpCsum = csum_and_copy_to_user(vaddr + compat_skb_frag_off(frag), -+ curr, compat_skb_frag_size(frag), 0, -+ &err); -+ compat_kunmap_frag(frag); ++ vaddr = kmap(skb_frag_page(frag)); ++ tmpCsum = csum_and_copy_to_user(vaddr + skb_frag_off(frag), ++ curr, skb_frag_size(frag), 0, &err); ++ kunmap(skb_frag_page(frag)); if (err) { return err; } csum = csum_block_add(csum, tmpCsum, curr - buf); - curr += frag->size; -+ curr += compat_skb_frag_size(frag); ++ curr += skb_frag_size(frag); } } |