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SubjectRe: [possible PATCH] crypto: sahara - Use #ifdef DEBUG not IS_ENABLED(DEBUG)
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Le 08/03/2019 à 01:15, Joe Perches a écrit :
> Normal use of IS_ENABLED is with a CONFIG_<SYMBOL> and
> there is no -DDEBUG in the Makefile here.
>
> Replace the IS_ENABLED(DEBUG) with #ifdef DEBUG/#endif
> blocks.

By doing this you hide a big part of the code which cannot be verified
unless DEBUG is defined.

I suggest to add the following helper:

static bool is_debug_enabled(void)
{
#ifdef DEBUG
return true;
#else
return false;
#endif
}

then replace

if (IS_ENABLED(DEBUG))

by

if (is_debug_enabled())

Christophe

>
> Miscellanea:
>
> o Move the sahara_state array into the function that uses it.
>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
> drivers/crypto/sahara.c | 20 +++++++++-----------
> 1 file changed, 9 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
> index 8c32a3059b4a..d2b4bd483507 100644
> --- a/drivers/crypto/sahara.c
> +++ b/drivers/crypto/sahara.c
> @@ -348,14 +348,13 @@ static void sahara_decode_error(struct sahara_dev *dev, unsigned int error)
> dev_err(dev->device, "\n");
> }
>
> -static const char *sahara_state[4] = { "Idle", "Busy", "Error", "HW Fault" };
> -
> static void sahara_decode_status(struct sahara_dev *dev, unsigned int status)
> {
> +#ifdef DEBUG
> u8 state;
> -
> - if (!IS_ENABLED(DEBUG))
> - return;
> + static const char *sahara_state[4] = {
> + "Idle", "Busy", "Error", "HW Fault"
> + };
>
> state = SAHARA_STATUS_GET_STATE(status);
>
> @@ -400,15 +399,14 @@ static void sahara_decode_status(struct sahara_dev *dev, unsigned int status)
> sahara_read(dev, SAHARA_REG_CDAR));
> dev_dbg(dev->device, "Initial DAR: 0x%08x\n\n",
> sahara_read(dev, SAHARA_REG_IDAR));
> +#endif
> }
>
> static void sahara_dump_descriptors(struct sahara_dev *dev)
> {
> +#ifdef DEBUG
> int i;
>
> - if (!IS_ENABLED(DEBUG))
> - return;
> -
> for (i = 0; i < SAHARA_MAX_HW_DESC; i++) {
> dev_dbg(dev->device, "Descriptor (%d) (%pad):\n",
> i, &dev->hw_phys_desc[i]);
> @@ -421,15 +419,14 @@ static void sahara_dump_descriptors(struct sahara_dev *dev)
> dev->hw_desc[i]->next);
> }
> dev_dbg(dev->device, "\n");
> +#endif
> }
>
> static void sahara_dump_links(struct sahara_dev *dev)
> {
> +#ifdef DEBUG
> int i;
>
> - if (!IS_ENABLED(DEBUG))
> - return;
> -
> for (i = 0; i < SAHARA_MAX_HW_LINK; i++) {
> dev_dbg(dev->device, "Link (%d) (%pad):\n",
> i, &dev->hw_phys_link[i]);
> @@ -439,6 +436,7 @@ static void sahara_dump_links(struct sahara_dev *dev)
> dev->hw_link[i]->next);
> }
> dev_dbg(dev->device, "\n");
> +#endif
> }
>
> static int sahara_hw_descriptor_create(struct sahara_dev *dev)
>

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