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authorAriel Elior <ariele@broadcom.com>2011-11-13 05:34:31 +0100
committerDavid S. Miller <davem@davemloft.net>2011-11-13 22:03:56 +0100
commit72754080d14feef1ca0b3ae383ddfdc5d9a71b1a (patch)
tree05810c6843036c8ddf7ff5b5aae6a485b160e254 /drivers
parentbnx2x: prevent race in statistics flow (diff)
downloadlinux-72754080d14feef1ca0b3ae383ddfdc5d9a71b1a.tar.xz
linux-72754080d14feef1ca0b3ae383ddfdc5d9a71b1a.zip
bnx2x: Remove on-stack napi struct variable
Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e9a91a347c75..13dad9230dbc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -79,19 +79,21 @@ static inline void bnx2x_bz_fp(struct bnx2x *bp, int index)
* @to: destination FP index
*
* Makes sure the contents of the bp->fp[to].napi is kept
- * intact.
+ * intact. This is done by first copying the napi struct from
+ * the target to the source, and then mem copying the entire
+ * source onto the target
*/
static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to)
{
struct bnx2x_fastpath *from_fp = &bp->fp[from];
struct bnx2x_fastpath *to_fp = &bp->fp[to];
- struct napi_struct orig_napi = to_fp->napi;
+
+ /* Copy the NAPI object as it has been already initialized */
+ from_fp->napi = to_fp->napi;
+
/* Move bnx2x_fastpath contents */
memcpy(to_fp, from_fp, sizeof(*to_fp));
to_fp->index = to;
-
- /* Restore the NAPI object as it has been already initialized */
- to_fp->napi = orig_napi;
}
int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */