From: Xianting Tian <xianting.tian@linux.alibaba.com> To: gregkh@linuxfoundation.org, jirislaby@kernel.org, amit@kernel.org, arnd@arndb.de, osandov@fb.com Cc: shile.zhang@linux.alibaba.com, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Xianting Tian <xianting.tian@linux.alibaba.com> Subject: [PATCH v10 1/3] tty: hvc: use correct dma alignment size Date: Sat, 9 Oct 2021 19:48:27 +0800 [thread overview] Message-ID: <20211009114829.1071021-2-xianting.tian@linux.alibaba.com> (raw) In-Reply-To: <20211009114829.1071021-1-xianting.tian@linux.alibaba.com> Use L1_CACHE_BYTES as the dma alignment size, use 'sizeof(long)' is wrong. Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Reviewed-by: Shile Zhang <shile.zhang@linux.alibaba.com> --- drivers/tty/hvc/hvc_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 5bb8c4e44..5957ab728 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -49,7 +49,7 @@ #define N_OUTBUF 16 #define N_INBUF 16 -#define __ALIGNED__ __attribute__((__aligned__(sizeof(long)))) +#define __ALIGNED__ __attribute__((__aligned__(L1_CACHE_BYTES))) static struct tty_driver *hvc_driver; static struct task_struct *hvc_task; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Xianting Tian <xianting.tian@linux.alibaba.com> To: gregkh@linuxfoundation.org, jirislaby@kernel.org, amit@kernel.org, arnd@arndb.de, osandov@fb.com Cc: Xianting Tian <xianting.tian@linux.alibaba.com>, shile.zhang@linux.alibaba.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: [PATCH v10 1/3] tty: hvc: use correct dma alignment size Date: Sat, 9 Oct 2021 19:48:27 +0800 [thread overview] Message-ID: <20211009114829.1071021-2-xianting.tian@linux.alibaba.com> (raw) In-Reply-To: <20211009114829.1071021-1-xianting.tian@linux.alibaba.com> Use L1_CACHE_BYTES as the dma alignment size, use 'sizeof(long)' is wrong. Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Reviewed-by: Shile Zhang <shile.zhang@linux.alibaba.com> --- drivers/tty/hvc/hvc_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 5bb8c4e44..5957ab728 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -49,7 +49,7 @@ #define N_OUTBUF 16 #define N_INBUF 16 -#define __ALIGNED__ __attribute__((__aligned__(sizeof(long)))) +#define __ALIGNED__ __attribute__((__aligned__(L1_CACHE_BYTES))) static struct tty_driver *hvc_driver; static struct task_struct *hvc_task; -- 2.17.1
next prev parent reply other threads:[~2021-10-09 11:48 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-09 11:48 [PATCH v10 0/3] make hvc pass dma capable memory to its backend Xianting Tian 2021-10-09 11:48 ` Xianting Tian 2021-10-09 11:48 ` Xianting Tian [this message] 2021-10-09 11:48 ` [PATCH v10 1/3] tty: hvc: use correct dma alignment size Xianting Tian 2021-10-09 11:48 ` [PATCH v10 2/3] tty: hvc: pass DMA capable memory to put_chars() Xianting Tian 2021-10-09 11:48 ` Xianting Tian 2021-10-09 11:55 ` Greg KH 2021-10-09 11:55 ` Greg KH 2021-10-09 11:55 ` Greg KH 2021-10-09 11:58 ` Greg KH 2021-10-09 11:58 ` Greg KH 2021-10-09 11:58 ` Greg KH 2021-10-09 15:45 ` Xianting Tian 2021-10-09 15:45 ` Xianting Tian 2021-10-10 5:33 ` Greg KH 2021-10-10 5:33 ` Greg KH 2021-10-10 5:33 ` Greg KH 2021-10-14 8:34 ` Xianting Tian 2021-10-14 8:34 ` Xianting Tian 2021-10-14 8:41 ` Greg KH 2021-10-14 8:41 ` Greg KH 2021-10-14 8:41 ` Greg KH 2021-10-14 8:56 ` Xianting Tian 2021-10-14 8:56 ` Xianting Tian 2021-10-09 11:48 ` [PATCH v10 3/3] virtio-console: remove unnecessary kmemdup() Xianting Tian 2021-10-09 11:48 ` Xianting Tian
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