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SubjectRe: [PATCH v2 3/6] EDAC/amd64: Use a macro for iterating over Unified Memory Controllers
On Tue, Feb 26, 2019 at 05:25:46PM +0000, Ghannam, Yazen wrote:
> From: Yazen Ghannam <yazen.ghannam@amd.com>
>
> Define and use a macro for looping over the number of Unified Memory
> Controllers.
>
> No functional change.
>
> Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
> ---
> Link:
> https://lkml.kernel.org/r/20190219202536.15462-2-Yazen.Ghannam@amd.com
>
> v1->v2:
> * New in V2. Please see comment on Patch 2 V1 at link above.
>
> drivers/edac/amd64_edac.c | 17 ++++++++++-------
> 1 file changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
> index 0038fcb0b010..c82aafb7246a 100644
> --- a/drivers/edac/amd64_edac.c
> +++ b/drivers/edac/amd64_edac.c
> @@ -449,6 +449,9 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
> #define for_each_chip_select_mask(i, dct, pvt) \
> for (i = 0; i < pvt->csels[dct].m_cnt; i++)
>
> +#define for_each_umc(i) \
> + for (i = 0; i < num_umcs; i++)
> +
> /*
> * @input_addr is an InputAddr associated with the node given by mci. Return the
> * csrow that input_addr maps to, or -1 on failure (no csrow claims input_addr).
> @@ -722,7 +725,7 @@ static unsigned long determine_edac_cap(struct amd64_pvt *pvt)
> if (pvt->umc) {
> u8 i, umc_en_mask = 0, dimm_ecc_en_mask = 0;
>
> - for (i = 0; i < num_umcs; i++) {
> + for_each_umc(i) {

Hmm, maybe I didn't express myself as clearly as I should have, before.
Sorry about that.

But if you sort the patches this way:

1. Add for_each_umc() and convert code to use it
2. add num_umcs and convert for_each_umc() to use it

You won't have to touch the loops twice in patches 2 and 3 and your
diffstat will be a lot smaller.

Makes sense?

Thx.

--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.

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