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padata: remove start function

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padata_start() is only used right after pcrypt allocates an instance
with all possible CPUs, when PADATA_INVALID can't happen, so there's no
need for a separate "start" step.  It can be done during allocation to
save text, make using padata easier, and avoid unneeded calls in the
future.

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>
This commit is contained in:
Daniel Jordan
2020-07-14 16:13:51 -04:00
committed by Herbert Xu
parent c06c76602e
commit bd25b4886d
3 changed files with 1 additions and 29 deletions
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3
crypto/pcrypt.c
View File

@@ -355,9 +355,6 @@ static int __init pcrypt_init(void)
if (err) if (err)
goto err_deinit_pencrypt; goto err_deinit_pencrypt;
padata_start(pencrypt);
padata_start(pdecrypt);
return crypto_register_template(&pcrypt_tmpl); return crypto_register_template(&pcrypt_tmpl);
err_deinit_pencrypt: err_deinit_pencrypt:

1
include/linux/padata.h
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@@ -204,6 +204,5 @@ extern void padata_do_serial(struct padata_priv *padata);
extern void __init padata_do_multithreaded(struct padata_mt_job *job); extern void __init padata_do_multithreaded(struct padata_mt_job *job);
extern int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type, extern int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type,
cpumask_var_t cpumask); cpumask_var_t cpumask);
extern int padata_start(struct padata_instance *pinst);
extern void padata_stop(struct padata_instance *pinst); extern void padata_stop(struct padata_instance *pinst);
#endif #endif

26
kernel/padata.c
View File

@@ -789,30 +789,6 @@ out:
} }
EXPORT_SYMBOL(padata_set_cpumask); EXPORT_SYMBOL(padata_set_cpumask);
/**
* padata_start - start the parallel processing
*
* @pinst: padata instance to start
*
* Return: 0 on success or negative error code
*/
int padata_start(struct padata_instance *pinst)
{
int err = 0;
mutex_lock(&pinst->lock);
if (pinst->flags & PADATA_INVALID)
err = -EINVAL;
__padata_start(pinst);
mutex_unlock(&pinst->lock);
return err;
}
EXPORT_SYMBOL(padata_start);
/** /**
* padata_stop - stop the parallel processing * padata_stop - stop the parallel processing
* *
@@ -1100,7 +1076,7 @@ static struct padata_instance *padata_alloc(const char *name,
if (padata_setup_cpumasks(pinst)) if (padata_setup_cpumasks(pinst))
goto err_free_rcpumask_cbcpu; goto err_free_rcpumask_cbcpu;
pinst->flags = 0; __padata_start(pinst);
kobject_init(&pinst->kobj, &padata_attr_type); kobject_init(&pinst->kobj, &padata_attr_type);
mutex_init(&pinst->lock); mutex_init(&pinst->lock);