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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-18 14:20:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-18 14:20:35 -0700 |
| commit | f66179ca7a7beebd504bea5c4422c402162a6048 (patch) | |
| tree | 5553b495212f2679968a273ed1f2bfe2731b5a02 /scripts/coccinelle/api/alloc/zalloc-simple.cocci | |
| parent | 1912b04e0f9b116faf2e61c5432980f87c389c51 (diff) | |
| parent | edc05fe5559e9b79e64cfec3b960f6a913b73493 (diff) | |
Merge branch 'for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux
Pull coccinelle updates from Julia Lawall.
* 'for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
coccinelle: api: add kfree_mismatch script
coccinelle: iterators: Add for_each_child.cocci script
scripts: coccicheck: Change default condition for parallelism
scripts: coccicheck: Add quotes to improve portability
coccinelle: api: kfree_sensitive: print memset position
coccinelle: misc: add flexible_array.cocci script
coccinelle: api: add kvmalloc script
scripts: coccicheck: Change default value for parallelism
coccinelle: misc: add excluded_middle.cocci script
scripts: coccicheck: Improve error feedback when coccicheck fails
coccinelle: api: update kzfree script to kfree_sensitive
coccinelle: misc: add uninitialized_var.cocci script
coccinelle: ifnullfree: add vfree(), kvfree*() functions
coccinelle: api: add kobj_to_dev.cocci script
coccinelle: add patch rule for dma_alloc_coherent
scripts: coccicheck: Add chain mode to list of modes
Diffstat (limited to 'scripts/coccinelle/api/alloc/zalloc-simple.cocci')
| -rw-r--r-- | scripts/coccinelle/api/alloc/zalloc-simple.cocci | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/scripts/coccinelle/api/alloc/zalloc-simple.cocci b/scripts/coccinelle/api/alloc/zalloc-simple.cocci index 26cda3f48f01..b3d0c3c230c1 100644 --- a/scripts/coccinelle/api/alloc/zalloc-simple.cocci +++ b/scripts/coccinelle/api/alloc/zalloc-simple.cocci @@ -127,6 +127,16 @@ statement S; if ((x==NULL) || ...) S - memset((T2)x,0,E1); +@depends on patch@ +type T, T2; +expression x; +expression E1,E2,E3,E4; +statement S; +@@ + x = (T)dma_alloc_coherent(E1, E2, E3, E4); + if ((x==NULL) || ...) S +- memset((T2)x, 0, E2); + //---------------------------------------------------------- // For org mode //---------------------------------------------------------- @@ -199,9 +209,9 @@ statement S; position p; @@ - x = (T)dma_alloc_coherent@p(E2,E1,E3,E4); + x = (T)dma_alloc_coherent@p(E1,E2,E3,E4); if ((x==NULL) || ...) S - memset((T2)x,0,E1); + memset((T2)x,0,E2); @script:python depends on org@ p << r2.p; @@ -217,7 +227,7 @@ p << r2.p; x << r2.x; @@ -msg="WARNING: dma_alloc_coherent use in %s already zeroes out memory, so memset is not needed" % (x) +msg="WARNING: dma_alloc_coherent used in %s already zeroes out memory, so memset is not needed" % (x) coccilib.report.print_report(p[0], msg) //----------------------------------------------------------------- |