linux-kernel - [PATCH 18/19] crypto: talitos: convert tasklets to use new tasklet

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 17 Aug 2020 13:39:40 +0530
From:   Allen Pais <allen.lkml@...il.com>
To:     nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        ludovic.desroches@...rochip.com, heiko@...ech.de,
        matthias.bgg@...il.com
Cc:     keescook@...omium.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        inux-mediatek@...ts.infradead.org,
        Allen Pais <allen.lkml@...il.com>,
        Romain Perier <romain.perier@...il.com>
Subject: [PATCH 18/19] crypto: talitos: convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@...il.com>
Signed-off-by: Allen Pais <allen.lkml@...il.com>
---
 drivers/crypto/talitos.c | 42 ++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 23 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 7c547352a862..6d729af1f8e4 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -402,10 +402,11 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch)
  * process completed requests for channels that have done status
  */
 #define DEF_TALITOS1_DONE(name, ch_done_mask)				\
-static void talitos1_done_##name(unsigned long data)			\
+static void talitos1_done_##name(struct tasklet_struct *t)		\
 {									\
-	struct device *dev = (struct device *)data;			\
-	struct talitos_private *priv = dev_get_drvdata(dev);		\
+	struct talitos_private *priv = from_tasklet(priv, t,		\
+		done_task[0]);						\
+	struct device *dev = priv->dev;					\
 	unsigned long flags;						\
 									\
 	if (ch_done_mask & 0x10000000)					\
@@ -428,11 +429,12 @@ static void talitos1_done_##name(unsigned long data)			\
 DEF_TALITOS1_DONE(4ch, TALITOS1_ISR_4CHDONE)
 DEF_TALITOS1_DONE(ch0, TALITOS1_ISR_CH_0_DONE)
 
-#define DEF_TALITOS2_DONE(name, ch_done_mask)				\
-static void talitos2_done_##name(unsigned long data)			\
+#define DEF_TALITOS2_DONE(name, ch_done_mask, tasklet_idx)		\
+static void talitos2_done_##name(struct tasklet_struct *t)		\
 {									\
-	struct device *dev = (struct device *)data;			\
-	struct talitos_private *priv = dev_get_drvdata(dev);		\
+	struct talitos_private *priv = from_tasklet(priv, t,		\
+		done_task[tasklet_idx]);				\
+	struct device *dev = priv->dev;					\
 	unsigned long flags;						\
 									\
 	if (ch_done_mask & 1)						\
@@ -452,10 +454,10 @@ static void talitos2_done_##name(unsigned long data)			\
 	spin_unlock_irqrestore(&priv->reg_lock, flags);			\
 }
 
-DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE)
-DEF_TALITOS2_DONE(ch0, TALITOS2_ISR_CH_0_DONE)
-DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE)
-DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE)
+DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE, 0)
+DEF_TALITOS2_DONE(ch0, TALITOS2_ISR_CH_0_DONE), 0
+DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE, 0)
+DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE, 1)
 
 /*
  * locate current (offending) descriptor
@@ -3385,23 +3387,17 @@ static int talitos_probe(struct platform_device *ofdev)
 
 	if (has_ftr_sec1(priv)) {
 		if (priv->num_channels == 1)
-			tasklet_init(&priv->done_task[0], talitos1_done_ch0,
-				     (unsigned long)dev);
+			tasklet_setup(&priv->done_task[0], talitos1_done_ch0);
 		else
-			tasklet_init(&priv->done_task[0], talitos1_done_4ch,
-				     (unsigned long)dev);
+			tasklet_setup(&priv->done_task[0], talitos1_done_4ch);
 	} else {
 		if (priv->irq[1]) {
-			tasklet_init(&priv->done_task[0], talitos2_done_ch0_2,
-				     (unsigned long)dev);
-			tasklet_init(&priv->done_task[1], talitos2_done_ch1_3,
-				     (unsigned long)dev);
+			tasklet_setup(&priv->done_task[0], talitos2_done_ch0_2);
+			tasklet_setup(&priv->done_task[1], talitos2_done_ch1_3);
 		} else if (priv->num_channels == 1) {
-			tasklet_init(&priv->done_task[0], talitos2_done_ch0,
-				     (unsigned long)dev);
+			tasklet_setup(&priv->done_task[0], talitos2_done_ch0);
 		} else {
-			tasklet_init(&priv->done_task[0], talitos2_done_4ch,
-				     (unsigned long)dev);
+			tasklet_setup(&priv->done_task[0], talitos2_done_4ch);
 		}
 	}
 
-- 
2.17.1