ACPI / APEI: Remove silent flag from ghes_read_estatus()

Subsequent patches will split up ghes_read_estatus(), at which
point passing around the 'silent' flag gets annoying. This is to
suppress prink() messages, which prior to commit 42a0bb3f
("printk/nmi: generic solution for safe printk in NMI"), were
unsafe in NMI context.

This is no longer necessary, remove the flag. printk() messages
are batched in a per-cpu buffer and printed via irq-work, or a call
back from panic().
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/apei/ghes.c

@@ -324,7 +324,7 @@ static void ghes_copy_tofrom_phys(void *buffer, u64 paddr, u32 len,
 	}
 }
 
-static int ghes_read_estatus(struct ghes *ghes, int silent)
+static int ghes_read_estatus(struct ghes *ghes)
 {
 	struct acpi_hest_generic *g = ghes->generic;
 	u64 buf_paddr;
@@ -333,8 +333,7 @@ static int ghes_read_estatus(struct ghes *ghes, int silent)
 
 	rc = apei_read(&buf_paddr, &g->error_status_address);
 	if (rc) {
-		if (!silent && printk_ratelimit())
-			pr_warning(FW_WARN GHES_PFX
+		pr_warn_ratelimited(FW_WARN GHES_PFX
 "Failed to read error status block address for hardware error source: %d.\n",
 				   g->header.source_id);
 		return -EIO;
@@ -366,9 +365,9 @@ static int ghes_read_estatus(struct ghes *ghes, int silent)
 	rc = 0;
 
 err_read_block:
-	if (rc && !silent && printk_ratelimit())
-		pr_warning(FW_WARN GHES_PFX
-			   "Failed to read error status block!\n");
+	if (rc)
+		pr_warn_ratelimited(FW_WARN GHES_PFX
+				    "Failed to read error status block!\n");
 	return rc;
 }
 
@@ -702,7 +701,7 @@ static int ghes_proc(struct ghes *ghes)
 {
 	int rc;
 
-	rc = ghes_read_estatus(ghes, 0);
+	rc = ghes_read_estatus(ghes);
 	if (rc)
 		goto out;
 
@@ -939,7 +938,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
 		return ret;
 
 	list_for_each_entry_rcu(ghes, &ghes_nmi, list) {
-		if (ghes_read_estatus(ghes, 1)) {
+		if (ghes_read_estatus(ghes)) {
 			ghes_clear_estatus(ghes);
 			continue;
 		} else {