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path: root/main/linux-grsec/fix-spi-nor-namespace-clash.patch
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grsec patch includes <linux/fs.h> which defines READ and WRITE.
Remove the macro hackery, and use the proper #define names for
macro invocations so there's no surprises.

--- linux-4.4/drivers/mtd/spi-nor/fsl-quadspi.c.orig
+++ linux-4.4/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -183,8 +183,8 @@
 
 /* Macros for constructing the LUT register. */
 #define LUT0(ins, pad, opr)						\
-		(((opr) << OPRND0_SHIFT) | ((LUT_##pad) << PAD0_SHIFT) | \
-		((LUT_##ins) << INSTR0_SHIFT))
+		(((opr) << OPRND0_SHIFT) | ((pad) << PAD0_SHIFT) | \
+		((ins) << INSTR0_SHIFT))
 
 #define LUT1(ins, pad, opr)	(LUT0(ins, pad, opr) << OPRND1_SHIFT)
 
@@ -364,14 +364,14 @@
 		dummy = 8;
 	}
 
-	writel(LUT0(CMD, PAD1, cmd) | LUT1(ADDR, PAD1, addrlen),
+	writel(LUT0(LUT_CMD, LUT_PAD1, cmd) | LUT1(LUT_ADDR, LUT_PAD1, addrlen),
 			base + QUADSPI_LUT(lut_base));
-	writel(LUT0(DUMMY, PAD1, dummy) | LUT1(FSL_READ, PAD4, rxfifo),
+	writel(LUT0(LUT_DUMMY, LUT_PAD1, dummy) | LUT1(LUT_FSL_READ, LUT_PAD4, rxfifo),
 			base + QUADSPI_LUT(lut_base + 1));
 
 	/* Write enable */
 	lut_base = SEQID_WREN * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_WREN), base + QUADSPI_LUT(lut_base));
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_WREN), base + QUADSPI_LUT(lut_base));
 
 	/* Page Program */
 	lut_base = SEQID_PP * 4;
@@ -385,13 +385,13 @@
 		addrlen = ADDR32BIT;
 	}
 
-	writel(LUT0(CMD, PAD1, cmd) | LUT1(ADDR, PAD1, addrlen),
+	writel(LUT0(LUT_CMD, LUT_PAD1, cmd) | LUT1(LUT_ADDR, LUT_PAD1, addrlen),
 			base + QUADSPI_LUT(lut_base));
-	writel(LUT0(FSL_WRITE, PAD1, 0), base + QUADSPI_LUT(lut_base + 1));
+	writel(LUT0(LUT_FSL_WRITE, LUT_PAD1, 0), base + QUADSPI_LUT(lut_base + 1));
 
 	/* Read Status */
 	lut_base = SEQID_RDSR * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_RDSR) | LUT1(FSL_READ, PAD1, 0x1),
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_RDSR) | LUT1(LUT_FSL_READ, LUT_PAD1, 0x1),
 			base + QUADSPI_LUT(lut_base));
 
 	/* Erase a sector */
@@ -400,40 +400,40 @@
 	cmd = q->nor[0].erase_opcode;
 	addrlen = q->nor_size <= SZ_16M ? ADDR24BIT : ADDR32BIT;
 
-	writel(LUT0(CMD, PAD1, cmd) | LUT1(ADDR, PAD1, addrlen),
+	writel(LUT0(LUT_CMD, LUT_PAD1, cmd) | LUT1(LUT_ADDR, LUT_PAD1, addrlen),
 			base + QUADSPI_LUT(lut_base));
 
 	/* Erase the whole chip */
 	lut_base = SEQID_CHIP_ERASE * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_CHIP_ERASE),
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_CHIP_ERASE),
 			base + QUADSPI_LUT(lut_base));
 
 	/* READ ID */
 	lut_base = SEQID_RDID * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_RDID) | LUT1(FSL_READ, PAD1, 0x8),
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_RDID) | LUT1(LUT_FSL_READ, LUT_PAD1, 0x8),
 			base + QUADSPI_LUT(lut_base));
 
 	/* Write Register */
 	lut_base = SEQID_WRSR * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_WRSR) | LUT1(FSL_WRITE, PAD1, 0x2),
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_WRSR) | LUT1(LUT_FSL_WRITE, LUT_PAD1, 0x2),
 			base + QUADSPI_LUT(lut_base));
 
 	/* Read Configuration Register */
 	lut_base = SEQID_RDCR * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_RDCR) | LUT1(FSL_READ, PAD1, 0x1),
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_RDCR) | LUT1(LUT_FSL_READ, LUT_PAD1, 0x1),
 			base + QUADSPI_LUT(lut_base));
 
 	/* Write disable */
 	lut_base = SEQID_WRDI * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_WRDI), base + QUADSPI_LUT(lut_base));
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_WRDI), base + QUADSPI_LUT(lut_base));
 
 	/* Enter 4 Byte Mode (Micron) */
 	lut_base = SEQID_EN4B * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_EN4B), base + QUADSPI_LUT(lut_base));
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_EN4B), base + QUADSPI_LUT(lut_base));
 
 	/* Enter 4 Byte Mode (Spansion) */
 	lut_base = SEQID_BRWR * 4;
-	writel(LUT0(CMD, PAD1, SPINOR_OP_BRWR), base + QUADSPI_LUT(lut_base));
+	writel(LUT0(LUT_CMD, LUT_PAD1, SPINOR_OP_BRWR), base + QUADSPI_LUT(lut_base));
 
 	fsl_qspi_lock_lut(q);
 }