diff options
Diffstat (limited to '0009-ns16550-fix-an-incorrect-assignment-to-uart-io_size.patch')
| -rw-r--r-- | 0009-ns16550-fix-an-incorrect-assignment-to-uart-io_size.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/0009-ns16550-fix-an-incorrect-assignment-to-uart-io_size.patch b/0009-ns16550-fix-an-incorrect-assignment-to-uart-io_size.patch new file mode 100644 index 0000000..83e46c7 --- /dev/null +++ b/0009-ns16550-fix-an-incorrect-assignment-to-uart-io_size.patch @@ -0,0 +1,34 @@ +From 0fd9ad2b9c0c9d9c4879a566f1788d3e9cd38ef6 Mon Sep 17 00:00:00 2001 +From: Ayan Kumar Halder <ayan.kumar.halder@amd.com> +Date: Tue, 7 Feb 2023 17:05:56 +0100 +Subject: [PATCH 09/61] ns16550: fix an incorrect assignment to uart->io_size + +uart->io_size represents the size in bytes. Thus, when serial_port.bit_width +is assigned to it, it should be converted to size in bytes. + +Fixes: 17b516196c ("ns16550: add ACPI support for ARM only") +Reported-by: Jan Beulich <jbeulich@suse.com> +Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com> +Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> +master commit: 352c89f72ddb67b8d9d4e492203f8c77f85c8df1 +master date: 2023-01-24 16:54:38 +0100 +--- + xen/drivers/char/ns16550.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/xen/drivers/char/ns16550.c b/xen/drivers/char/ns16550.c +index 2d2bd2a024..5dd4d723f5 100644 +--- a/xen/drivers/char/ns16550.c ++++ b/xen/drivers/char/ns16550.c +@@ -1780,7 +1780,7 @@ static int __init ns16550_acpi_uart_init(const void *data) + uart->parity = spcr->parity; + uart->stop_bits = spcr->stop_bits; + uart->io_base = spcr->serial_port.address; +- uart->io_size = spcr->serial_port.bit_width; ++ uart->io_size = DIV_ROUND_UP(spcr->serial_port.bit_width, BITS_PER_BYTE); + uart->reg_shift = spcr->serial_port.bit_offset; + uart->reg_width = spcr->serial_port.access_width; + +-- +2.40.0 + |