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authorDaniel Jordan <daniel.m.jordan@oracle.com>2020-07-14 23:13:52 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2020-07-23 10:34:18 +0300
commit350ef051d4edd884e8dea0be9f3685b4b32142fb (patch)
tree5892a130131480d800ff0c6c5e7fcc753fbe7228 /Documentation/core-api
parentbd25b4886ddcebec92591f298ce2ce345d7f2ea9 (diff)
downloadlinux-350ef051d4edd884e8dea0be9f3685b4b32142fb.tar.xz
padata: remove stop function
padata_stop() has two callers and is unnecessary in both cases. When pcrypt calls it before padata_free(), it's being unloaded so there are no outstanding padata jobs[0]. When __padata_free() calls it, it's either along the same path or else pcrypt initialization failed, which of course means there are also no outstanding jobs. Removing it simplifies padata and saves text. [0] https://lore.kernel.org/linux-crypto/20191119225017.mjrak2fwa5vccazl@gondor.apana.org.au/ Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/core-api')
-rw-r--r--Documentation/core-api/padata.rst16
1 files changed, 2 insertions, 14 deletions
diff --git a/Documentation/core-api/padata.rst b/Documentation/core-api/padata.rst
index 0830e5b0e821..771d50330e5b 100644
--- a/Documentation/core-api/padata.rst
+++ b/Documentation/core-api/padata.rst
@@ -31,18 +31,7 @@ padata_instance structure for overall control of how jobs are to be run::
'name' simply identifies the instance.
-There are functions for enabling and disabling the instance::
-
- int padata_start(struct padata_instance *pinst);
- void padata_stop(struct padata_instance *pinst);
-
-These functions are setting or clearing the "PADATA_INIT" flag; if that flag is
-not set, other functions will refuse to work. padata_start() returns zero on
-success (flag set) or -EINVAL if the padata cpumask contains no active CPU
-(flag not set). padata_stop() clears the flag and blocks until the padata
-instance is unused.
-
-Finally, complete padata initialization by allocating a padata_shell::
+Then, complete padata initialization by allocating a padata_shell::
struct padata_shell *padata_alloc_shell(struct padata_instance *pinst);
@@ -155,11 +144,10 @@ submitted.
Destroying
----------
-Cleaning up a padata instance predictably involves calling the three free
+Cleaning up a padata instance predictably involves calling the two free
functions that correspond to the allocation in reverse::
void padata_free_shell(struct padata_shell *ps);
- void padata_stop(struct padata_instance *pinst);
void padata_free(struct padata_instance *pinst);
It is the user's responsibility to ensure all outstanding jobs are complete