Re: [PATCH] mwifiex: Add quirk to disable deep sleep with certain hardware revision

From: Jonas Dreßler
Date: Wed Nov 03 2021 - 09:38:11 EST


On 11/3/21 13:25, Jonas Dreßler wrote:


--- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
@@ -708,6 +708,22 @@ static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
  {
         struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;

+       if (test_and_clear_bit(MWIFIEX_IS_REQUESTING_FW_VEREXT, &priv->adapter->work_flags)) {
+               if (strncmp(ver_ext->version_str, "ChipRev:20, BB:9b(10.00), RF:40(21)", 128) == 0) {

Rather than memorize the 128-size array here, maybe use
sizeof(ver_ext->version_str) ?

Sounds like a good idea, yeah.

Nevermind, the reason I did this was for consistency in the
function, right underneath in the same function it also assumes
a fixed size of 128 characters, so I'd rather use the same
length.

memcpy(version_ext->version_str, ver_ext->version_str,
sizeof(char) * 128);
memcpy(priv->version_str, ver_ext->version_str, 128);

Might be a good idea to #define it as MWIFIEX_VERSION_STR_LENGTH
in fw.h though...