Re: [PATCH] staging: comedi: Fix incorrect type assignment

From: Ian Abbott
Date: Wed Feb 08 2017 - 09:00:45 EST


On 08/02/17 13:26, Karthik Nayak wrote:
Hello,

On Wed, Feb 8, 2017 at 6:43 PM, Ian Abbott <abbotti@xxxxxxxxx> wrote:
On 07/02/17 19:06, Karthik Nayak wrote:

This patch fixes the following sparse error:
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: warning: incorrect
type in assignment (different base types)
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: expected
restricted __be32 [usertype] serial_number
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: got unsigned int

This is done by introducing a temporary variable which is of type
'__be32' and converting the existing variable to type 'unsigned int'.

Signed-off-by: Karthik Nayak <Karthik.188@xxxxxxxxx>
---
drivers/staging/comedi/drivers/ni_pcimio.c | 5 +++--
drivers/staging/comedi/drivers/ni_stc.h | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)
[snip]

(On a side note, nothing actually uses serial number, so the code that reads
it from the EEPROM could just be ripped out.)

Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>


Yea, I saw that, was assuming there might be a purposed use case scenario.

AFAICT it's never been used - not even to print a kernel log message or anything.

Do you want me to send another patch?

If you want. If you plan to do so, could you indicate whether you are going to base the patch on top of this one, or whether this patch should be discarded. Thanks!

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-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Web: http://www.mev.co.uk/ )=-