arm: simplify updating ACPI table header checksum

Use acpi_update_checksum() to update table header.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>

diff --git a/arch/arm/mach-bcm283x/bcm2711_acpi.c b/arch/arm/mach-bcm283x/bcm2711_acpi.c
index 79b2833..58f8ee2 100644 (file)
--- a/arch/arm/mach-bcm283x/bcm2711_acpi.c
+++ b/arch/arm/mach-bcm283x/bcm2711_acpi.c
@@ -81,7 +81,7 @@ static int acpi_write_pptt(struct acpi_ctx *ctx, const struct acpi_writer *entry
        }
 
        header->length = ctx->current - ctx->tab_start;
-       header->checksum = table_compute_checksum(header, header->length);
+       acpi_update_checksum(header);
 
        acpi_inc(ctx, header->length);
        acpi_add_table(ctx, header);
@@ -116,7 +116,7 @@ static int rpi_write_gtdt(struct acpi_ctx *ctx, const struct acpi_writer *entry)
        gtdt->el2_flags = GTDT_FLAG_INT_ACTIVE_LOW;
        gtdt->cnt_read_base = 0xffffffffffffffff;
 
-       header->checksum = table_compute_checksum(header, header->length);
+       acpi_update_checksum(header);
 
        acpi_add_table(ctx, gtdt);
 

diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 70d3c35..6ecd3eb 100644 (file)
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -791,7 +791,7 @@ static int rpi_acpi_write_ssdt(struct acpi_ctx *ctx, const struct acpi_writer *e
 
        /* (Re)calculate length and checksum */
        ssdt->length = ctx->current - (void *)ssdt;
-       ssdt->checksum = table_compute_checksum((void *)ssdt, ssdt->length);
+       acpi_update_checksum(ssdt);
        log_debug("SSDT at %p, length %x\n", ssdt, ssdt->length);
 
        /* Drop the table if it is empty */