[PATCH 4.17 046/336] bpf, arm32: fix inconsistent naming about emit_a32_lsr_{r64, i64}

[PATCH 4.17 046/336] bpf, arm32: fix inconsistent naming about emit_a32_lsr_{r64, i64}

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wang YanQing <udknight@gmail.com>

[ Upstream commit 68565a1af9f7012e6f2fe2bdd612f67d2d830c28 ]

The names for BPF_ALU64 | BPF_ARSH are emit_a32_arsh_*,
the names for BPF_ALU64 | BPF_LSH are emit_a32_lsh_*, but
the names for BPF_ALU64 | BPF_RSH are emit_a32_lsr_*.

For consistence reason, let's rename emit_a32_lsr_* to
emit_a32_rsh_*.

This patch also corrects a wrong comment.

Fixes: 39c13c204bb1 ("arm: eBPF JIT compiler")
Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: Shubham Bansal <illusionist.neo@gmail.com>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux at armlinux.org.uk
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/net/bpf_jit_32.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -708,7 +708,7 @@ static inline void emit_a32_arsh_r64(con
 }
 
 /* dst = dst >> src */
-static inline void emit_a32_lsr_r64(const u8 dst[], const u8 src[], bool dstk,
+static inline void emit_a32_rsh_r64(const u8 dst[], const u8 src[], bool dstk,
 				     bool sstk, struct jit_ctx *ctx) {
 	const u8 *tmp = bpf2a32[TMP_REG_1];
 	const u8 *tmp2 = bpf2a32[TMP_REG_2];
@@ -724,7 +724,7 @@ static inline void emit_a32_lsr_r64(cons
 		emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
 	}
 
-	/* Do LSH operation */
+	/* Do RSH operation */
 	emit(ARM_RSB_I(ARM_IP, rt, 32), ctx);
 	emit(ARM_SUBS_I(tmp2[0], rt, 32), ctx);
 	emit(ARM_MOV_SR(ARM_LR, rd, SRTYPE_LSR, rt), ctx);
@@ -774,7 +774,7 @@ static inline void emit_a32_lsh_i64(cons
 }
 
 /* dst = dst >> val */
-static inline void emit_a32_lsr_i64(const u8 dst[], bool dstk,
+static inline void emit_a32_rsh_i64(const u8 dst[], bool dstk,
 				    const u32 val, struct jit_ctx *ctx) {
 	const u8 *tmp = bpf2a32[TMP_REG_1];
 	const u8 *tmp2 = bpf2a32[TMP_REG_2];
@@ -1330,7 +1330,7 @@ static int build_insn(const struct bpf_i
 	case BPF_ALU64 | BPF_RSH | BPF_K:
 		if (unlikely(imm > 63))
 			return -EINVAL;
-		emit_a32_lsr_i64(dst, dstk, imm, ctx);
+		emit_a32_rsh_i64(dst, dstk, imm, ctx);
 		break;
 	/* dst = dst << src */
 	case BPF_ALU64 | BPF_LSH | BPF_X:
@@ -1338,7 +1338,7 @@ static int build_insn(const struct bpf_i
 		break;
 	/* dst = dst >> src */
 	case BPF_ALU64 | BPF_RSH | BPF_X:
-		emit_a32_lsr_r64(dst, src, dstk, sstk, ctx);
+		emit_a32_rsh_r64(dst, src, dstk, sstk, ctx);
 		break;
 	/* dst = dst >> src (signed) */
 	case BPF_ALU64 | BPF_ARSH | BPF_X:

[PATCH 4.17 186/336] EDAC, altera: Fix ARM64 build warning

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thor Thayer <thor.thayer@linux.intel.com>

[ Upstream commit 9ef20753e044f7468c4113e5aecd785419b0b3cc ]

The kbuild test robot reported the following warning:

  drivers/edac/altera_edac.c: In function 'ocram_free_mem':
  drivers/edac/altera_edac.c:1410:42: warning: cast from pointer to integer
	of different size [-Wpointer-to-int-cast]
    gen_pool_free((struct gen_pool *)other, (u32)p, size);
                                             ^

After adding support for ARM64 architectures, the unsigned long
parameter is 64 bits and causes a build warning on 64-bit configs. Fix
by casting to the correct size (unsigned long) instead of u32.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: c3eea1942a16 ("EDAC, altera: Add Altera L2 cache and OCRAM support")
Link: http://lkml.kernel.org/r/1526317441-4996-1-git-send-email-thor.thayer at linux.intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/altera_edac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -1106,7 +1106,7 @@ static void *ocram_alloc_mem(size_t size
 
 static void ocram_free_mem(void *p, size_t size, void *other)
 {
-	gen_pool_free((struct gen_pool *)other, (u32)p, size);
+	gen_pool_free((struct gen_pool *)other, (unsigned long)p, size);
 }
 
 static const struct edac_device_prv_data ocramecc_data = {

[PATCH 4.17 269/336] soc: imx: gpcv2: Do not pass static memory as platform data

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andrey Smirnov <andrew.smirnov@gmail.com>

[ Upstream commit 050f810e238f268670f14a8f8b793ba2dbf2e92f ]

Platform device core assumes the ownership of dev.platform_data as
well as that it is dynamically allocated and it will try to kfree it
as a part of platform_device_release(). Change the code to use
platform_device_add_data() n instead of a pointer to a static memory
to avoid causing a BUG() when calling platform_device_put().

The problem can be reproduced by artificially enabling the error path
of platform_device_add() call (around line 357).

Note that this change also allows us to constify imx7_pgc_domains,
since we no longer need to be able to modify it.

Cc: Stefan Agner <stefan@agner.ch>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/imx/gpcv2.c |   22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -155,7 +155,7 @@ static int imx7_gpc_pu_pgc_sw_pdn_req(st
 	return imx7_gpc_pu_pgc_sw_pxx_req(genpd, false);
 }
 
-static struct imx7_pgc_domain imx7_pgc_domains[] = {
+static const struct imx7_pgc_domain imx7_pgc_domains[] = {
 	[IMX7_POWER_DOMAIN_MIPI_PHY] = {
 		.genpd = {
 			.name      = "mipi-phy",
@@ -321,11 +321,6 @@ static int imx_gpcv2_probe(struct platfo
 			continue;
 		}
 
-		domain = &imx7_pgc_domains[domain_index];
-		domain->regmap = regmap;
-		domain->genpd.power_on  = imx7_gpc_pu_pgc_sw_pup_req;
-		domain->genpd.power_off = imx7_gpc_pu_pgc_sw_pdn_req;
-
 		pd_pdev = platform_device_alloc("imx7-pgc-domain",
 						domain_index);
 		if (!pd_pdev) {
@@ -334,7 +329,20 @@ static int imx_gpcv2_probe(struct platfo
 			return -ENOMEM;
 		}
 
-		pd_pdev->dev.platform_data = domain;
+		ret = platform_device_add_data(pd_pdev,
+					       &imx7_pgc_domains[domain_index],
+					       sizeof(imx7_pgc_domains[domain_index]));
+		if (ret) {
+			platform_device_put(pd_pdev);
+			of_node_put(np);
+			return ret;
+		}
+
+		domain = pd_pdev->dev.platform_data;
+		domain->regmap = regmap;
+		domain->genpd.power_on  = imx7_gpc_pu_pgc_sw_pup_req;
+		domain->genpd.power_off = imx7_gpc_pu_pgc_sw_pdn_req;
+
 		pd_pdev->dev.parent = dev;
 		pd_pdev->dev.of_node = np;