fm10k/base: remove useless variable

The reference to err_no was left around after an old re-factor. We never
use this value again, and the macros called on the function appear to
have no relevant side effect I could see. Discovered via cppcheck
fm10k_mbx.c:1312: (style) Variable 'err_no' is assigned a value that is never used.

This occurred because a previous commit refactored and removed all used
references to err_no.

Signed-off-by: Wang Xiao W <xiao.w.wang@intel.com>

diff --git a/drivers/net/fm10k/base/fm10k_mbx.c b/drivers/net/fm10k/base/fm10k_mbx.c
index e6cf1c8..d65af21 100644 (file)
--- a/drivers/net/fm10k/base/fm10k_mbx.c
+++ b/drivers/net/fm10k/base/fm10k_mbx.c
@@ -1277,16 +1277,11 @@ STATIC s32 fm10k_mbx_process_error(struct fm10k_hw *hw,
                                   struct fm10k_mbx_info *mbx)
 {
        const u32 *hdr = &mbx->mbx_hdr;
-       s32 err_no;
        u16 head;
 
        /* we will need to pull all of the fields for verification */
        head = FM10K_MSG_HDR_FIELD_GET(*hdr, HEAD);
 
-       /* we only have lower 10 bits of error number so add upper bits */
-       err_no = FM10K_MSG_HDR_FIELD_GET(*hdr, ERR_NO);
-       err_no |= ~FM10K_MSG_HDR_MASK(ERR_NO);
-
        switch (mbx->state) {
        case FM10K_STATE_OPEN:
        case FM10K_STATE_DISCONNECT: