Re: [PATCH v14 4/9] soc: qcom: cpr: Move common functions to new file

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On 8/29/23 17:15, Bjorn Andersson wrote:
On Mon, Aug 28, 2023 at 01:42:16PM +0200, Konrad Dybcio wrote:
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>


It seems reasonable to update the subject prefix, now that things have
moved to the genpd subsystem.

Ack


In preparation for implementing a new driver that will be handling
CPRv3, CPRv4 and CPR-Hardened, format out common functions to a new
file.

Update cpr_get_fuses in preparation for CPR3 implementation, change
parameters where necessary to not take cpr.c private data structures.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>
[Konrad: rebase, apply review comments, improve msg, split]
Tested-by: Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx>
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
  drivers/genpd/qcom/Makefile     |   2 +-
  drivers/genpd/qcom/cpr-common.c | 350 ++++++++++++++++++++++++++++++++++++
  drivers/genpd/qcom/cpr-common.h | 103 +++++++++++
  drivers/genpd/qcom/cpr.c        | 384 +++-------------------------------------
  4 files changed, 475 insertions(+), 364 deletions(-)

diff --git a/drivers/genpd/qcom/Makefile b/drivers/genpd/qcom/Makefile
index 403dfc5af095..b28c8d9128c4 100644
--- a/drivers/genpd/qcom/Makefile
+++ b/drivers/genpd/qcom/Makefile
@@ -1,4 +1,4 @@
  # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_QCOM_CPR)		+= cpr.o
+obj-$(CONFIG_QCOM_CPR)		+= cpr-common.o cpr.o

Is there a reason for this to be split in two drivers? Would it make
sense to rewrite this such that the result ends up as a single .ko?

cpr1 is far, far simpler.. I'm not sure if sprinkling millions of ifs
everywhere is worth it


Then you shouldn't need to EXPORT_SYMBOL between the two parts of the
same "driver".
I suppose it's a balance of code complexity (see /\) vs kernel size

Konrad




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