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[92.233.226.227]) by smtp.googlemail.com with ESMTPSA id 60sm6300907wrq.14.2021.05.28.01.25.47 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 May 2021 01:25:48 -0700 (PDT) Subject: Re: [PATCH 1/2] nvmem: core: constify nvmem_cell_read_variable_common() return value To: Douglas Anderson Cc: Rajendra Nayak , linux-arm-msm@vger.kernel.org, Stephen Boyd , Joe Perches , linux-kernel@vger.kernel.org References: <20210521140031.1.Ibaca694aedfaff823feefa06b29ae746c641dd1a@changeid> From: Srinivas Kandagatla Message-ID: <269ec480-e4b8-30c8-db3d-f45095fa1d46@linaro.org> Date: Fri, 28 May 2021 09:25:47 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20210521140031.1.Ibaca694aedfaff823feefa06b29ae746c641dd1a@changeid> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 21/05/2021 22:00, Douglas Anderson wrote: > The caller doesn't modify the memory pointed to by the pointer so it > can be const. > > Suggested-by: Stephen Boyd > Signed-off-by: Douglas Anderson > --- > Applied both thanks, --srini > drivers/nvmem/core.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c > index f9c9c9859919..4868aa876e1b 100644 > --- a/drivers/nvmem/core.c > +++ b/drivers/nvmem/core.c > @@ -1609,9 +1609,9 @@ int nvmem_cell_read_u64(struct device *dev, const char *cell_id, u64 *val) > } > EXPORT_SYMBOL_GPL(nvmem_cell_read_u64); > > -static void *nvmem_cell_read_variable_common(struct device *dev, > - const char *cell_id, > - size_t max_len, size_t *len) > +static const void *nvmem_cell_read_variable_common(struct device *dev, > + const char *cell_id, > + size_t max_len, size_t *len) > { > struct nvmem_cell *cell; > int nbits; > @@ -1655,7 +1655,7 @@ int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id, > u32 *val) > { > size_t len; > - u8 *buf; > + const u8 *buf; > int i; > > buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len); > @@ -1686,7 +1686,7 @@ int nvmem_cell_read_variable_le_u64(struct device *dev, const char *cell_id, > u64 *val) > { > size_t len; > - u8 *buf; > + const u8 *buf; > int i; > > buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len); >