can: softing: Remove redundant variable ptr

The value stored to ptr in the calculations this patch removes is not
used, so the calculation and the assignment can be removed.

Cleans up the following clang-analyzer warning:

drivers/net/can/softing/softing_main.c:279:3: warning: Value stored to
'ptr' is never read [clang-analyzer-deadcode.DeadStores].

drivers/net/can/softing/softing_main.c:242:3: warning: Value stored to
'ptr' is never read [clang-analyzer-deadcode.DeadStores].

Link: https://lore.kernel.org/r/1619520767-80948-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c
index c44f341..cfc1325 100644 (file)
--- a/drivers/net/can/softing/softing_main.c
+++ b/drivers/net/can/softing/softing_main.c
@@ -239,7 +239,6 @@ static int softing_handle_1(struct softing *card)
                                DPRAM_INFO_BUSSTATE2 : DPRAM_INFO_BUSSTATE]);
                /* timestamp */
                tmp_u32 = le32_to_cpup((void *)ptr);
-               ptr += 4;
                ktime = softing_raw2ktime(card, tmp_u32);
 
                ++netdev->stats.rx_errors;
@@ -276,7 +275,6 @@ static int softing_handle_1(struct softing *card)
                ktime = softing_raw2ktime(card, tmp_u32);
                if (!(msg.can_id & CAN_RTR_FLAG))
                        memcpy(&msg.data[0], ptr, 8);
-               ptr += 8;
                /* update socket */
                if (cmd & CMD_ACK) {
                        /* acknowledge, was tx msg */