On 22/03/2025 00:21, Heinrich Schuchardt wrote:
Use acpi_update_checksum() for updating ACPI table header checksum.

Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>

Reviewed-by: Matthias Brugger <mbrug...@suse.com>

---
  lib/acpi/acpi_table.c | 18 +++++++-----------
  lib/acpi/base.c       |  6 ++----
  lib/acpi/csrt.c       |  2 +-
  lib/acpi/mcfg.c       |  2 +-
  lib/acpi/ssdt.c       |  2 +-
  5 files changed, 12 insertions(+), 18 deletions(-)

diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c
index c0ed24984af..b5495d48a46 100644
--- a/lib/acpi/acpi_table.c
+++ b/lib/acpi/acpi_table.c
@@ -195,9 +195,7 @@ int acpi_add_table(struct acpi_ctx *ctx, void *table)
                                        (sizeof(u32) * (i + 1));
/* Re-calculate checksum */
-               rsdt->header.checksum = 0;
-               rsdt->header.checksum = table_compute_checksum((u8 *)rsdt,
-                                                              
rsdt->header.length);
+               acpi_update_checksum(&rsdt->header);
        }
if (ctx->xsdt) {
@@ -228,9 +226,7 @@ int acpi_add_table(struct acpi_ctx *ctx, void *table)
                                        (sizeof(u64) * (i + 1));
/* Re-calculate checksum */
-               xsdt->header.checksum = 0;
-               xsdt->header.checksum = table_compute_checksum((u8 *)xsdt,
-                                                              
xsdt->header.length);
+               acpi_update_checksum(&xsdt->header);
        }
return 0;
@@ -268,7 +264,7 @@ int acpi_write_fadt(struct acpi_ctx *ctx, const struct 
acpi_writer *entry)
acpi_fill_fadt(fadt); - header->checksum = table_compute_checksum(fadt, header->length);
+       acpi_update_checksum(header);
return acpi_add_fadt(ctx, fadt);
  }
@@ -303,7 +299,7 @@ int acpi_write_madt(struct acpi_ctx *ctx, const struct 
acpi_writer *entry)
        if (IS_ENABLED(CONFIG_ACPI_PARKING_PROTOCOL))
                acpi_write_park(madt);
- header->checksum = table_compute_checksum((void *)madt, header->length);
+       acpi_update_checksum(header);
        acpi_add_table(ctx, madt);
        ctx->current = (void *)madt + madt->header.length;
@@ -374,7 +370,7 @@ void acpi_create_dbg2(struct acpi_dbg2_header *dbg2,
        /* Update structure lengths and checksum */
        device->length = current - (uintptr_t)device;
        header->length = current - (uintptr_t)dbg2;
-       header->checksum = table_compute_checksum(dbg2, header->length);
+       acpi_update_checksum(header);
  }
int acpi_write_dbg2_pci_uart(struct acpi_ctx *ctx, struct udevice *dev,
@@ -549,7 +545,7 @@ static int acpi_write_spcr(struct acpi_ctx *ctx, const 
struct acpi_writer *entry
                spcr->baud_rate = 0;
/* Fix checksum */
-       header->checksum = table_compute_checksum((void *)spcr, header->length);
+       acpi_update_checksum(header);
acpi_add_table(ctx, spcr);
        acpi_inc(ctx, spcr->header.length);
@@ -759,7 +755,7 @@ static int acpi_write_iort(struct acpi_ctx *ctx, const 
struct acpi_writer *entry
/* (Re)calculate length and checksum */
        iort->header.length = ctx->current - (void *)iort;
-       iort->header.checksum = table_compute_checksum((void *)iort, 
iort->header.length);
+       acpi_update_checksum(&iort->header);
        log_debug("IORT at %p, length %x\n", iort, iort->header.length);
/* Drop the table if it is empty */
diff --git a/lib/acpi/base.c b/lib/acpi/base.c
index 8b6af2bc43a..5c755b14c16 100644
--- a/lib/acpi/base.c
+++ b/lib/acpi/base.c
@@ -50,8 +50,7 @@ static void acpi_write_rsdt(struct acpi_rsdt *rsdt)
        /* Entries are filled in later, we come with an empty set */
/* Fix checksum */
-       header->checksum = table_compute_checksum(rsdt,
-                                                 sizeof(struct acpi_rsdt));
+       acpi_update_checksum(header);
  }
static void acpi_write_xsdt(struct acpi_xsdt *xsdt)
@@ -66,8 +65,7 @@ static void acpi_write_xsdt(struct acpi_xsdt *xsdt)
        /* Entries are filled in later, we come with an empty set */
/* Fix checksum */
-       header->checksum = table_compute_checksum(xsdt,
-                                                 sizeof(struct acpi_xsdt));
+       acpi_update_checksum(header);
  }
static int acpi_write_base(struct acpi_ctx *ctx,
diff --git a/lib/acpi/csrt.c b/lib/acpi/csrt.c
index 00927e53406..b863c644c07 100644
--- a/lib/acpi/csrt.c
+++ b/lib/acpi/csrt.c
@@ -40,7 +40,7 @@ int acpi_write_csrt(struct acpi_ctx *ctx, const struct 
acpi_writer *entry)
/* (Re)calculate length and checksum */
        header->length = (ulong)ctx->current - (ulong)csrt;
-       header->checksum = table_compute_checksum(csrt, header->length);
+       acpi_update_checksum(header);
acpi_add_table(ctx, csrt); diff --git a/lib/acpi/mcfg.c b/lib/acpi/mcfg.c
index 8b8a5bfafae..e21fe7ce123 100644
--- a/lib/acpi/mcfg.c
+++ b/lib/acpi/mcfg.c
@@ -57,7 +57,7 @@ int acpi_write_mcfg(struct acpi_ctx *ctx, const struct 
acpi_writer *entry)
/* (Re)calculate length and checksum */
        header->length = (ulong)ctx->current - (ulong)mcfg;
-       header->checksum = table_compute_checksum(mcfg, header->length);
+       acpi_update_checksum(header);
acpi_add_table(ctx, mcfg); diff --git a/lib/acpi/ssdt.c b/lib/acpi/ssdt.c
index df1d739d117..41e2d3c2f6c 100644
--- a/lib/acpi/ssdt.c
+++ b/lib/acpi/ssdt.c
@@ -35,7 +35,7 @@ int acpi_write_ssdt(struct acpi_ctx *ctx, const struct 
acpi_writer *entry)
/* (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 */

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