Re: [Lkcamp] [PATCH] staging: speakup: remove simple_strtoul

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On 22-04-2018 17:10, Gabriel Krisman Bertazi wrote:
Gabriel Fedel <fedel@xxxxxxxxxxxx> writes:

Substitute simple_strtoul by kstrtoul (simple_strtoul is obsolete)

Hi Gabriel,

Hi Gabriel!

Signed-off-by: Gabriel Fedel <fedel@xxxxxxxxxxxx>
---
  drivers/staging/speakup/kobjects.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index f1f9022..278b1cf 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -154,7 +154,7 @@ static ssize_t chars_chartab_store(struct kobject *kobj,
  			continue;
  		}
- index = simple_strtoul(cp, &temp, 10);
+		index = kstrtoul(cp, &temp, 10);


Did you test compiled the kernel with your changes?
I thought I had compiled...


The definition of kstrtoul is different from simple_strtoul, and
compiling the kernel with your patch triggers the following build
errors:

linux/kernel.h:332:32: note: expected ‘unsigned int’ but argument is of type ‘char **’
  static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
				^~~~~~~~
linux/drivers/staging/speakup/kobjects.c:790:31:
warning: passing argument 3 of ‘kstrtoul’ makes pointer from integer without a cast [-Wint-conversion]
index = kstrtoul(cp, &temp, 10);
 >
I will check again, and send another patch.

Thank you for review, and sorry for the errors!


  		if (index > 255) {
  			rejected++;
  			cp = linefeed + 1;
@@ -787,7 +787,7 @@ static ssize_t message_store_helper(const char *buf, size_t count,
  			continue;
  		}
- index = simple_strtoul(cp, &temp, 10);
+		index = kstrtoul(cp, &temp, 10);
while ((temp < linefeed) && (*temp == ' ' || *temp == '\t'))
  			temp++;


--
Gabriel Fedel
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