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Accepting request 1070827 from home:hmzhao:branches:network:ha-clustering:Factory

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drbd: fix build error against kernel v6.2.1 (bsc#1209168)
  * update patch
    + bsc-1206791-05-prandom_u32_max.patch

OBS-URL: https://build.opensuse.org/request/show/1070827
OBS-URL: https://build.opensuse.org/package/show/network:ha-clustering:Factory/drbd?expand=0&rev=144
This commit is contained in:
heming zhao 2023-03-11 06:36:46 +00:00 committed by Git OBS Bridge
parent 44b98926cd
commit d4c87ee5c1
2 changed files with 28 additions and 9 deletions
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30
bsc-1206791-05-prandom_u32_max.patch
View File

@ -1,4 +1,4 @@
by heming.zhao@suse.com on 20220105 by heming.zhao@suse.com on 20220105 (bsc#1206791)
This is SUSE special patch, and this patch cocci codes were partly This is SUSE special patch, and this patch cocci codes were partly
copied from upstream kernel commit 81895a65ec63ee1daec3255dc1a06675d2fbe915 copied from upstream kernel commit 81895a65ec63ee1daec3255dc1a06675d2fbe915
@ -8,6 +8,18 @@ Because I don't know cocci syntax, so in drbd_state.c this patch
directly modifies prandom_u32() to prandom_u32_max(U32_MAX). All directly modifies prandom_u32() to prandom_u32_max(U32_MAX). All
other cases use cocci to modify. other cases use cocci to modify.
---
by heming.zhao@suse.com on 20230311 (bsc#1209168)
OpenSUSE kernel had been updated to v6.2.1, modification on 20220105
is not suitable. The upstream commit 8032bf1233a7 ("treewide:
use get_random_u32_below() instead of deprecated function") replaced
the prandom.h function prandom_u32_max with the random.h function
get_random_u32_below.
I changed this patch under latest kernel, using get_random_u32_below
to replace prandom_u32_max.
--- ---
diff -Nupr a/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci b/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci diff -Nupr a/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci b/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci
@ -25,16 +37,16 @@ diff -Nupr a/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci b/drbd/
+@@ +@@
+( +(
+- ((T)get_random_u32() % (E)) +- ((T)get_random_u32() % (E))
++ prandom_u32_max(E) ++ get_random_u32_below(E)
+| +|
+- ((T)get_random_u32() & ((E) - 1)) +- ((T)get_random_u32() & ((E) - 1))
++ prandom_u32_max(E * XXX_MAKE_SURE_E_IS_POW2) ++ get_random_u32_below(E * XXX_MAKE_SURE_E_IS_POW2)
+| +|
+- ((u64)(E) * get_random_u32() >> 32) +- ((u64)(E) * get_random_u32() >> 32)
++ prandom_u32_max(E) ++ get_random_u32_below(E)
+| +|
+- ((T)get_random_u32() & ~PAGE_MASK) +- ((T)get_random_u32() & ~PAGE_MASK)
++ prandom_u32_max(PAGE_SIZE) ++ get_random_u32_below(PAGE_SIZE)
+) +)
+ +
+@multi_line@ +@multi_line@
@ -46,7 +58,7 @@ diff -Nupr a/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci b/drbd/
+- RAND = get_random_u32(); +- RAND = get_random_u32();
+ ... when != RAND + ... when != RAND
+- RAND %= (E); +- RAND %= (E);
++ RAND = prandom_u32_max(E); ++ RAND = get_random_u32_below(E);
+ +
+// Find a potential literal +// Find a potential literal
+@literal_mask@ +@literal_mask@
@ -92,7 +104,7 @@ diff -Nupr a/drbd/drbd-kernel-compat/cocci/prandom_u32__no_present.cocci b/drbd/
+@@ +@@
+ +
+- (FUNC()@p & (LITERAL)) +- (FUNC()@p & (LITERAL))
++ prandom_u32_max(RESULT) ++ get_random_u32_below(RESULT)
diff -Nupr a/drbd/drbd_state.c b/drbd/drbd_state.c diff -Nupr a/drbd/drbd_state.c b/drbd/drbd_state.c
--- a/drbd/drbd_state.c 2023-01-05 09:00:01.252434773 +0800 --- a/drbd/drbd_state.c 2023-01-05 09:00:01.252434773 +0800
+++ b/drbd/drbd_state.c 2023-01-05 09:02:47.519078927 +0800 +++ b/drbd/drbd_state.c 2023-01-05 09:02:47.519078927 +0800
@ -101,7 +113,7 @@ diff -Nupr a/drbd/drbd_state.c b/drbd/drbd_state.c
do do
- reply->tid = prandom_u32(); - reply->tid = prandom_u32();
+ reply->tid = prandom_u32_max(U32_MAX); + reply->tid = get_random_u32_below(U32_MAX);
while (!reply->tid); while (!reply->tid);
request.tid = cpu_to_be32(reply->tid); request.tid = cpu_to_be32(reply->tid);
@ -110,7 +122,7 @@ diff -Nupr a/drbd/drbd_state.c b/drbd/drbd_state.c
do do
- reply->tid = prandom_u32(); - reply->tid = prandom_u32();
+ reply->tid = prandom_u32_max(U32_MAX); + reply->tid = get_random_u32_below(U32_MAX);
while (!reply->tid); while (!reply->tid);
request.tid = cpu_to_be32(reply->tid); request.tid = cpu_to_be32(reply->tid);

7
drbd.changes
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@ -1,3 +1,10 @@
------------------------------------------------------------------
Sat Mar 11 06:25:00 UTC 2023 - Heming Zhao <heming.zhao@suse.com>
- drbd: fix build error against kernel v6.2.1 (bsc#1209168)
* update patch
+ bsc-1206791-05-prandom_u32_max.patch
------------------------------------------------------------------- -------------------------------------------------------------------
Thu Jan 6 01:40:00 UTC 2023 - Heming Zhao <heming.zhao@suse.com> Thu Jan 6 01:40:00 UTC 2023 - Heming Zhao <heming.zhao@suse.com>