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[0/7] clk: qcom: fix frequency table termination in several drivers

Message ID 20240229-freq-table-terminator-v1-0-074334f0905c@gmail.com
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Series clk: qcom: fix frequency table termination in several drivers | expand

Message

Gabor Juhos Feb. 29, 2024, 6:07 p.m. UTC
Add missing terminating entry to frequency table arrays in
several drivers. There are separate independent patches for
each affected driver.

The series is based on v6.8-rc6.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
---
Gabor Juhos (7):
      clk: qcom: gcc-ipq5018: fix terminating of frequency table arrays
      clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays
      clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays
      clk: qcom: gcc-ipq9574: fix terminating of frequency table arrays
      clk: qcom: camcc-sc8280xp: fix terminating of frequency table arrays
      clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
      clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays

 drivers/clk/qcom/camcc-sc8280xp.c | 21 +++++++++++++++++++++
 drivers/clk/qcom/gcc-ipq5018.c    |  3 +++
 drivers/clk/qcom/gcc-ipq6018.c    |  2 ++
 drivers/clk/qcom/gcc-ipq8074.c    |  2 ++
 drivers/clk/qcom/gcc-ipq9574.c    |  1 +
 drivers/clk/qcom/mmcc-apq8084.c   |  2 ++
 drivers/clk/qcom/mmcc-msm8974.c   |  2 ++
 7 files changed, 33 insertions(+)
---
base-commit: d206a76d7d2726f3b096037f2079ce0bd3ba329b
change-id: 20240223-freq-table-terminator-f78760e7b5e0

Best regards,

Comments

Johan Hovold March 1, 2024, 2:03 p.m. UTC | #1
On Fri, Mar 01, 2024 at 02:37:01PM +0100, Gabor Juhos wrote:
> Hi Johan,
> 
> 2024. 03. 01. 10:40 keltezéssel, Johan Hovold írta:
> > On Thu, Feb 29, 2024 at 07:07:46PM +0100, Gabor Juhos wrote:
> >> The frequency table arrays are supposed to be terminated with an
> >> empty element. Add such entry to the end of the arrays where it
> >> is missing in order to avoid possible out-of-bound access when
> >> the table is traversed by functions like qcom_find_freq() or
> >> qcom_find_freq_floor().
> >>
> >> Fixes: e3fdbef1bab8 ("clk: qcom: Add Global Clock controller (GCC) driver for IPQ5018")
> > 
> > Good find!
> > 
> > Looks like these should be backported to the stable kernels as well so
> > someone should add:
> > 
> > Cc: stable@vger.kernel.org
> > 
> > to all patches except possibly the sc8280xp one (that camera clock
> > controller was added in 6.8-rc1 so that patch does not need it in case
> > you can these fixes in before 6.8 is released).
> 
> You are right maybe, although I did not find strong enough reasons for adding
> the stable tags.
> 
> Only the changes of the gcc-ipq5018 driver has been tested on real hardware the
> others are not. So those does not fit into the "It must be obviously correct and
> tested." rule.

Since this looks like a straight-forward and obviously correct fix for a
bug which could have bad consequences, not being able to test each patch
on actual hardware is not a problem.

Johan
Bjorn Andersson March 3, 2024, 7:50 p.m. UTC | #2
On Thu, 29 Feb 2024 19:07:45 +0100, Gabor Juhos wrote:
> Add missing terminating entry to frequency table arrays in
> several drivers. There are separate independent patches for
> each affected driver.
> 
> The series is based on v6.8-rc6.
> 
> 
> [...]

Applied, thanks!

[1/7] clk: qcom: gcc-ipq5018: fix terminating of frequency table arrays
      commit: 90ad946fff70f312b8d23226afc38c13ddd88c4b
[2/7] clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays
      commit: cdbc6e2d8108bc47895e5a901cfcaf799b00ca8d
[3/7] clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays
      commit: 1040ef5ed95d6fd2628bad387d78a61633e09429
[4/7] clk: qcom: gcc-ipq9574: fix terminating of frequency table arrays
      commit: bd2b6395671d823caa38d8e4d752de2448ae61e1
[5/7] clk: qcom: camcc-sc8280xp: fix terminating of frequency table arrays
      commit: 6a3d70f7802a98e6c28a74f997a264118b9f50cd
[6/7] clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
      commit: a903cfd38d8dee7e754fb89fd1bebed99e28003d
[7/7] clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays
      commit: e2c02a85bf53ae86d79b5fccf0a75ac0b78e0c96

Best regards,