| Message ID | 20240909193035.69823-6-marex@denx.de |
|---|---|
| State | New |
| Headers | show |
| Series | [v5,1/9] dt-bindings: wireless: wilc1000: Document WILC3000 compatible string | expand |
On 9/9/24 21:29, Marek Vasut wrote:
> The cmd53_buf is a 4 byte buffer, embed it into the struct wilc_sdio.
Is this change really desirable ? I mean, looking at git log, it looks like this
kzalloc is voluntary, for usage with DMA (see [1] as initial fix and [2] as the
final patch which has landed in the driver)
[1]
https://patchwork.kernel.org/project/linux-wireless/patch/20220728152037.386543-1-michael@walle.cc/
[2] https://lore.kernel.org/all/20220809075749.62752-1-ajay.kathat@microchip.com/
Alexis
On 9/10/24 11:47 AM, Alexis Lothoré wrote: > On 9/9/24 21:29, Marek Vasut wrote: >> The cmd53_buf is a 4 byte buffer, embed it into the struct wilc_sdio. > > Is this change really desirable ? I mean, looking at git log, it looks like this > kzalloc is voluntary, for usage with DMA (see [1] as initial fix and [2] as the > final patch which has landed in the driver) It is unrelated to the series, so I'll just drop it for now.
diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c index c26447289b71b..6d01a838ab184 100644 --- a/drivers/net/wireless/microchip/wilc1000/sdio.c +++ b/drivers/net/wireless/microchip/wilc1000/sdio.c @@ -31,7 +31,7 @@ struct wilc_sdio { bool irq_gpio; u32 block_size; bool isinit; - u8 *cmd53_buf; + u8 cmd53_buf[4]; }; struct sdio_cmd52 { @@ -149,12 +149,6 @@ static int wilc_sdio_probe(struct sdio_func *func, if (!sdio_priv) return -ENOMEM; - sdio_priv->cmd53_buf = kzalloc(sizeof(u32), GFP_KERNEL); - if (!sdio_priv->cmd53_buf) { - ret = -ENOMEM; - goto free; - } - ret = wilc_cfg80211_init(&wilc, &func->dev, WILC_HIF_SDIO, &wilc_hif_sdio); if (ret) @@ -207,7 +201,6 @@ static int wilc_sdio_probe(struct sdio_func *func, irq_dispose_mapping(wilc->dev_irq_num); wilc_netdev_cleanup(wilc); free: - kfree(sdio_priv->cmd53_buf); kfree(sdio_priv); return ret; } @@ -219,7 +212,6 @@ static void wilc_sdio_remove(struct sdio_func *func) clk_disable_unprepare(wilc->rtc_clk); wilc_netdev_cleanup(wilc); - kfree(sdio_priv->cmd53_buf); kfree(sdio_priv); }
The cmd53_buf is a 4 byte buffer, embed it into the struct wilc_sdio. Signed-off-by: Marek Vasut <marex@denx.de> --- Cc: "David S. Miller" <davem@davemloft.net> Cc: Adham Abozaeid <adham.abozaeid@microchip.com> Cc: Ajay Singh <ajay.kathat@microchip.com> Cc: Alexis Lothoré <alexis.lothore@bootlin.com> Cc: Claudiu Beznea <claudiu.beznea@tuxon.dev> Cc: Conor Dooley <conor+dt@kernel.org> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Kalle Valo <kvalo@kernel.org> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org --- V5: New patch --- drivers/net/wireless/microchip/wilc1000/sdio.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)