diff options
Diffstat (limited to '0001-rh_kabi-introduce-RH_KABI_EXCLUDE.patch')
| -rw-r--r-- | 0001-rh_kabi-introduce-RH_KABI_EXCLUDE.patch | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/0001-rh_kabi-introduce-RH_KABI_EXCLUDE.patch b/0001-rh_kabi-introduce-RH_KABI_EXCLUDE.patch deleted file mode 100644 index 8b08e4b04..000000000 --- a/0001-rh_kabi-introduce-RH_KABI_EXCLUDE.patch +++ /dev/null @@ -1,104 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Jakub Racek <jracek@redhat.com> -Date: Thu, 22 Nov 2018 12:59:45 +0100 -Subject: [PATCH] rh_kabi: introduce RH_KABI_EXCLUDE - -Message-id: <1542891606-8048-24-git-send-email-jracek@redhat.com> -Patchwork-id: 233503 -O-Subject: [ARK PATCH 23/44] [kernel] rh_kabi: introduce RH_KABI_EXCLUDE -Bugzilla: 1652256 -RH-Acked-by: Don Zickus <dzickus@redhat.com> -RH-Acked-by: Jiri Benc <jbenc@redhat.com> - -From: Jiri Benc <jbenc@redhat.com> - -Bugzilla: 1652256 -Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=19244562 - -rhel8 commit 1c588b1bbe6ea3e9e1701ccf10e22f73f687ad02 -Author: Jiri Benc <jbenc@redhat.com> -Date: Wed Nov 21 17:15:39 2018 +0100 - - [kernel] rh_kabi: introduce RH_KABI_EXCLUDE - - Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1568551 - - Add a way to exclude certain fields of a structure that would be otherwise - kABI whitelisted. The new RH_KABI_EXCLUDE macro serves two purposes: - - 1. Not adding the excluded fields to symbol checksums, making their later - changes easier. - - 2. Document that the given fields are not considered to be kABI whitelisted - by Red Hat. - - Note that: - - - This needs to be done _before_ the actual structure gets whitelisted. - - - It still allows later conversion of the excluded fields to whitelist - covered fields by simply changing RH_KABI_EXCLUDE to RH_KABI_EXTEND. - - - The excluded fields can be modified at will but extra care needs to be - taken to not cause problems with 3rd party drivers using the fields. See - the comment inside the patch for details. - - Signed-off-by: Jiri Benc <jbenc@redhat.com> - Signed-off-by: Herton R. Krzesinski <herton@redhat.com> - -Upstream Status: RHEL only -Signed-off-by: Jakub Racek <jracek@redhat.com> ---- - include/linux/rh_kabi.h | 17 +++++++++++++++++ - 1 file changed, 17 insertions(+) - -diff --git a/include/linux/rh_kabi.h b/include/linux/rh_kabi.h -index e0d3353802bb..87f2bd530df7 100644 ---- a/include/linux/rh_kabi.h -+++ b/include/linux/rh_kabi.h -@@ -80,6 +80,18 @@ - * corrupt memory. Instead, by changing the symbol checksum, such modules - * won't be loaded by the kernel. This macro should only be used as a - * last resort when all other KABI workarounds have failed. -+ * RH_KABI_EXCLUDE -+ * Exclude the element from checksum generation. Any such element is -+ * considered not to be part of the kABI whitelist and may be changed at -+ * will. Note however that it's the responsibility of the developer -+ * changing the element to ensure 3rd party drivers using this element -+ * won't panic, for example by not allowing them to be loaded. That can -+ * be achieved by changing another, non-whitelisted symbol they use, -+ * either by nature of the change or by using RH_KABI_FORCE_CHANGE. -+ * -+ * Also note that any change to the element must preserve its size. Change -+ * of the size is not allowed and would constitute a silent kABI breakage. -+ * Beware that the RH_KABI_EXCLUDE macro does not do any size checks. - * - * NOTE - * Don't use ';' after these macros as it messes up the kABI checker by -@@ -100,6 +112,7 @@ - # define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) _type (*_orig)(_args) - # define _RH_KABI_REPLACE(_orig, _new) _orig - # define _RH_KABI_REPLACE_UNSAFE(_orig, _new) _orig -+# define _RH_KABI_EXCLUDE(_elem) - - #else - -@@ -137,6 +150,8 @@ - } - # define _RH_KABI_REPLACE_UNSAFE(_orig, _new) _new - -+# define _RH_KABI_EXCLUDE(_elem) _elem -+ - #endif /* __GENKSYMS__ */ - - /* semicolon added wrappers for the RH_KABI_REPLACE macros */ -@@ -169,4 +184,6 @@ - */ - # define _RH_KABI_RESERVE(n) unsigned long rh_reserved##n - -+#define RH_KABI_EXCLUDE(_elem) _RH_KABI_EXCLUDE(_elem); -+ - #endif /* _LINUX_RH_KABI_H */ --- -2.28.0 - |