From: David Hildenbrand <david@redhat.com>
To: Leonardo Bras <leonardo@linux.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nathan Fontenot <nfont@linux.vnet.ibm.com>,
Pavel Tatashin <pavel.tatashin@microsoft.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Nathan Lynch <nathanl@linux.ibm.com>,
YueHaibing <yuehaibing@huawei.com>,
Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
Rob Herring <robh@kernel.org>
Subject: Re: [PATCH 1/1] pseries/hotplug-memory.c: Replace nested ifs by switch-case
Date: Fri, 2 Aug 2019 09:21:05 +0200 [thread overview]
Message-ID: <a01e8782-c59c-4c77-76f2-f4c36d1d9ed9@redhat.com> (raw)
In-Reply-To: <20190801225251.17864-1-leonardo@linux.ibm.com>
On 02.08.19 00:52, Leonardo Bras wrote:
> I noticed these nested ifs can be easily replaced by switch-cases,
> which can improve readability.
>
> Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com>
> ---
> .../platforms/pseries/hotplug-memory.c | 26 +++++++++++++------
> 1 file changed, 18 insertions(+), 8 deletions(-)
More LOC but seems to be the right thing to do
Reviewed-by: David Hildenbrand <david@redhat.com>
>
> diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
> index 46d0d35b9ca4..8e700390f3d6 100644
> --- a/arch/powerpc/platforms/pseries/hotplug-memory.c
> +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
> @@ -880,34 +880,44 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
>
> switch (hp_elog->action) {
> case PSERIES_HP_ELOG_ACTION_ADD:
> - if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT) {
> + switch (hp_elog->id_type) {
> + case PSERIES_HP_ELOG_ID_DRC_COUNT:
> count = hp_elog->_drc_u.drc_count;
> rc = dlpar_memory_add_by_count(count);
> - } else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX) {
> + break;
> + case PSERIES_HP_ELOG_ID_DRC_INDEX:
> drc_index = hp_elog->_drc_u.drc_index;
> rc = dlpar_memory_add_by_index(drc_index);
> - } else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_IC) {
> + break;
> + case PSERIES_HP_ELOG_ID_DRC_IC:
> count = hp_elog->_drc_u.ic.count;
> drc_index = hp_elog->_drc_u.ic.index;
> rc = dlpar_memory_add_by_ic(count, drc_index);
> - } else {
> + break;
> + default:
> rc = -EINVAL;
> + break;
> }
>
> break;
> case PSERIES_HP_ELOG_ACTION_REMOVE:
> - if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT) {
> + switch (hp_elog->id_type) {
> + case PSERIES_HP_ELOG_ID_DRC_COUNT:
> count = hp_elog->_drc_u.drc_count;
> rc = dlpar_memory_remove_by_count(count);
> - } else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX) {
> + break;
> + case PSERIES_HP_ELOG_ID_DRC_INDEX:
> drc_index = hp_elog->_drc_u.drc_index;
> rc = dlpar_memory_remove_by_index(drc_index);
> - } else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_IC) {
> + break;
> + case PSERIES_HP_ELOG_ID_DRC_IC:
> count = hp_elog->_drc_u.ic.count;
> drc_index = hp_elog->_drc_u.ic.index;
> rc = dlpar_memory_remove_by_ic(count, drc_index);
> - } else {
> + break;
> + default:
> rc = -EINVAL;
> + break;
> }
>
> break;
>
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2019-08-02 7:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-01 22:52 [PATCH 1/1] pseries/hotplug-memory.c: Replace nested ifs by switch-case Leonardo Bras
2019-08-02 7:21 ` David Hildenbrand [this message]
2019-08-02 12:26 ` Michael Ellerman
2019-08-02 13:18 ` Leonardo Bras
2019-08-10 10:20 ` Michael Ellerman
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