add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

 kernel/net/packet/af_packet.c
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@@ -63,6 +63,7 @@
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 #include <linux/if_packet.h>
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 #include <linux/wireless.h>
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 #include <linux/kernel.h>
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+#include <linux/delay.h>
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 #include <linux/kmod.h>
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 #include <linux/slab.h>
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 #include <linux/vmalloc.h>
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@@ -668,7 +669,7 @@
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 	if (BLOCK_NUM_PKTS(pbd)) {
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 		while (atomic_read(&pkc->blk_fill_in_prog)) {
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 			/* Waiting for skb_copy_bits to finish... */
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-			cpu_relax();
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+			cpu_chill();
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 		}
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 	}
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@@ -930,7 +931,7 @@
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 		if (!(status & TP_STATUS_BLK_TMO)) {
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 			while (atomic_read(&pkc->blk_fill_in_prog)) {
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 				/* Waiting for skb_copy_bits to finish... */
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-				cpu_relax();
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+				cpu_chill();
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 			}
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 		}
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 		prb_close_block(pkc, pbd, po, status);