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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/s390/char/sclp_pci.c
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@@ -24,6 +24,7 @@
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 #define SCLP_ATYPE_PCI				2
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+#define SCLP_ERRNOTIFY_AQ_RESET			0
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 #define SCLP_ERRNOTIFY_AQ_REPAIR		1
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 #define SCLP_ERRNOTIFY_AQ_INFO_LOG		2
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@@ -38,7 +39,7 @@
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 	u8 atype;
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 	u32 fh;
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 	u32 fid;
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-	u8 data[0];
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+	u8 data[];
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 } __packed;
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 struct err_notify_sccb {
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@@ -111,9 +112,14 @@
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 	if (report->version != 1)
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 		return -EINVAL;
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-	if (report->action != SCLP_ERRNOTIFY_AQ_REPAIR &&
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-	    report->action != SCLP_ERRNOTIFY_AQ_INFO_LOG)
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+	switch (report->action) {
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+	case SCLP_ERRNOTIFY_AQ_RESET:
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+	case SCLP_ERRNOTIFY_AQ_REPAIR:
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+	case SCLP_ERRNOTIFY_AQ_INFO_LOG:
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+		break;
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+	default:
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 		return -EINVAL;
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+	}
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 	if (report->length > (PAGE_SIZE - sizeof(struct err_notify_sccb)))
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 		return -EINVAL;