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path: root/drivers/nfc
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2021-07-25nfc: constify nfc_hci_opsKrzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nfc_hci_ops, so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nfc_opsKrzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nfc_ops, so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nfc_hci_gateKrzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nfc_hci_gate, so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify pointer to nfc_vendor_cmdKrzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nfc_vendor_cmd, so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: st21nfca: constify file-scope arraysKrzysztof Kozlowski
Driver only reads len_seq and wait_tab variables. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nfc_phy_opsKrzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nfc_phy_ops (consisting of function pointers), so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nci_driver_ops (prop_ops and core_ops)Krzysztof Kozlowski
Neither the core nor the drivers modify the passed pointer to struct nci_driver_ops (consisting of function pointers), so make it a pointer to const for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: s3fwrn5: constify nci_opsKrzysztof Kozlowski
s3fwrn5 driver modifies static struct nci_ops only to set prop_ops. Since prop_ops is build time constant with known size, it can be made const. This allows to removeo the function setting the prop_ops - s3fwrn5_nci_get_prop_ops(). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nci_opsKrzysztof Kozlowski
The struct nci_ops is modified by NFC core in only one case: nci_allocate_device() receives too many proprietary commands (prop_ops) to configure. This is a build time known constrain, so a graceful handling of such case is not necessary. Instead, fail the nci_allocate_device() and add BUILD_BUG_ON() to places which set these. This allows to constify the struct nci_ops (consisting of function pointers) for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-23nfc: port100: constify protocol list arrayKrzysztof Kozlowski
File-scope "port100_protocol" array is read-only and passed as pointer to const, so it can be made a const to increase code safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18NFC: nxp-nci: remove unnecessary labelwengjianfeng
Remove unnecessary label chunk_exit and return directly. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18NFC: nxp-nci: remove unnecessary labelswengjianfeng
Simplify the code by removing unnecessary labels and returning directly. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11nfc: fdp: remove unnecessary labelswengjianfeng
Some labels are meaningless, so we delete them and use the return statement instead of the goto statement. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-03nfc: mrvl: reduce the scope of local variablesKrzysztof Kozlowski
In two places the 'ep_desc' and 'skb' local variables are used only within if() or for() block, so they scope can be reduced which makes the entire code slightly easier to follow. No functional change. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-03nfc: mrvl: remove useless "continue" at end of loopKrzysztof Kozlowski
The "continue" statement at the end of a for loop does not have an effect. Entire loop contents can be slightly simplified to increase code readability. No functional change. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-01NFC: microread: Remove redundant assignment to variable errNigel Christian
In the case MICROREAD_CB_TYPE_READER_ALL clang reports a dead code warning. The error code assigned to variable err is already passed to async_cb(). The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Nigel Christian <nigel.l.christian@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-31nfc: st95hf: fix indentation to tabsKrzysztof Kozlowski
Use tabs to indent instead of spaces. No functional change. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-7-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: st-nci: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-6-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: st21nfca: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-5-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: pn544: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-4-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: pn533: drop unneeded braces {} in ifKrzysztof Kozlowski
{} braces are not needed over single if-statement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-3-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: pn533: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-2-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: mrvl: simplify with module_driverKrzysztof Kozlowski
Remove standard module init/exit boilerplate with module_driver() which also annotates the functions with __init. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073902.7111-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: mrvl: correct minor coding style violationsKrzysztof Kozlowski
Correct block comments and usage of tab in function definition. No functional change. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073522.6720-4-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: mrvl: use SPDX-License-IdentifierKrzysztof Kozlowski
Use SPDX-License-Identifier: GPL-2.0-only, instead of hand writing it. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073522.6720-3-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: mei_phy: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073522.6720-2-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31nfc: fdp: drop ftrace-like debugging messagesKrzysztof Kozlowski
Now that the kernel has ftrace, any debugging calls that just do "made it to this function!" and "leaving this function!" can be removed. Better to use standard debugging tools. This allows also to remove several local variables and entire fdp_nci_recv_frame() function (whose purpose was only to log). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210531073522.6720-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: st95hf: mark ACPI and OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or ACPI ID tables. If one configuration is disabled, the table will be unused: drivers/nfc/st95hf/core.c:1059:34: warning: ‘st95hf_spi_of_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-12-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: st21nfca: mark ACPI and OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or ACPI ID tables. If one configuration is disabled, the table will be unused: drivers/nfc/st21nfca/i2c.c:593:34: warning: ‘of_st21nfca_i2c_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-11-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: st-nci: mark ACPI and OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or ACPI ID tables. If one configuration is disabled, the table will be unused: drivers/nfc/st-nci/spi.c:296:34: warning: ‘of_st_nci_spi_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-10-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: pn544: mark ACPI and OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or ACPI ID tables. If one configuration is disabled, the table will be unused: drivers/nfc/pn544/i2c.c:53:36: warning: ‘pn544_hci_i2c_acpi_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-9-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: s3fwrn5: mark OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or I2C ID tables. If OF is disabled, the table will be unused: drivers/nfc/s3fwrn5/i2c.c:265:34: warning: ‘of_s3fwrn5_i2c_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-8-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: pn533: mark OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or I2C ID tables. If OF is disabled, the table will be unused: drivers/nfc/pn533/i2c.c:252:34: warning: ‘of_pn533_i2c_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-7-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: mrvl: skip impossible NCI_MAX_PAYLOAD_SIZE checkKrzysztof Kozlowski
The nci_ctrl_hdr.plen field us u8, so checkign if it is bigger than NCI_MAX_PAYLOAD_SIZE does not make any sense. Fix warning reported by Smatch: drivers/nfc/nfcmrvl/i2c.c:52 nfcmrvl_i2c_read() warn: impossible condition '(nci_hdr.plen > 255) => (0-255 > 255)' Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-6-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: mrvl: mark OF device ID tables as maybe unusedKrzysztof Kozlowski
The driver can match either via OF or I2C ID tables. If OF is disabled, the table will be unused: drivers/nfc/nfcmrvl/spi.c:199:34: warning: ‘of_nfcmrvl_spi_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-5-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: pn533: drop of_match_ptr from device ID tableKrzysztof Kozlowski
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might be not relevant here). This fixes compile warning (!CONFIG_OF): drivers/nfc/pn533/i2c.c:252:34: warning: ‘of_pn533_i2c_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-4-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: port100: correct kerneldoc for structureKrzysztof Kozlowski
The port100_in_rf_setting structure does not contain valid kerneldoc docummentation, unlike the port100_tg_rf_setting structure. Correct the kerneldoc to fix W=1 warnings: warning: This comment starts with '/**', but isn't a kernel-doc comment. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-3-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: fdp: drop ACPI_PTR from device ID tableKrzysztof Kozlowski
The driver can match only via the ACPI ID table so the table should be always used and the ACPI_PTR does not have any sense. This fixes fixes compile warning (!CONFIG_ACPI): drivers/nfc/fdp/i2c.c:362:36: warning: ‘fdp_nci_i2c_acpi_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-2-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28nfc: fdp: correct kerneldoc for structureKrzysztof Kozlowski
Since structure comments are not kerneldoc, remove the double ** to fix W=1 warnings: warning: This comment starts with '/**', but isn't a kernel-doc comment. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210528124200.79655-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
cdc-wdm: s/kill_urbs/poison_urbs/ to fix build Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-26nfc: st-nci: remove unnecessary labelswengjianfeng
Some labels are only used once, so we delete them and use the return statement instead of the goto statement. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210526011624.11204-1-samirweng1979@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-26nfc: st95hf: remove unnecessary assignment and labelwengjianfeng
In function st95hf_in_send_cmd, the variable rc is assigned then goto error label, which just returns rc, so we use return to replace it. Since error label only used once in the function, so we remove error label. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210526005651.12652-1-samirweng1979@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-24nfc: st-nci: remove unnecessary assignment and labelwengjianfeng
In function st_nci_hci_network_init, the variable r is assigned then goto exit label, which just return r, so we use return to replace it. and exit label only used once at here, so we remove exit label. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-23NFC: nfcmrvl: fix kernel-doc syntax in file headersAditya Srivastava
The opening comment mark '/**' is used for highlighting the beginning of kernel-doc comments. The header for drivers/nfc/nfcmrvl follows this syntax, but the content inside does not comply with kernel-doc. This line was probably not meant for kernel-doc parsing, but is parsed due to the presence of kernel-doc like comment syntax(i.e, '/**'), which causes unexpected warnings from kernel-doc. For e.g., running scripts/kernel-doc -none on drivers/nfc/nfcmrvl/spi.c causes warning: warning: expecting prototype for Marvell NFC(). Prototype was for SPI_WAIT_HANDSHAKE() instead Provide a simple fix by replacing such occurrences with general comment format, i.e. '/*', to prevent kernel-doc from parsing it. Signed-off-by: Aditya Srivastava <yashsri421@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-20NFC: st21nfca: remove unnecessary variable and labelswengjianfeng
assign vlue (EIO/EPROTO) to variable r, and goto exit label, but just return r follow exit label, so we delete exit label, and just replace with return sentence. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-19nfc: s3fwrn5: i2c: Enable optional clock from device treeStephan Gerhold
S3FWRN5 depends on a clock input ("XI" pin) to function properly. Depending on the hardware configuration this could be an always-on oscillator or some external clock that must be explicitly enabled. So far we assumed that the clock is always-on. Make the driver request an (optional) clock from the device tree and make sure the clock is running before starting S3FWRN5. Note: S3FWRN5 asserts "GPIO2" whenever it needs the clock input to function correctly. On some hardware configurations, GPIO2 is connected directly to an input pin of the external clock provider (e.g. the main PMIC of the SoC). In that case, it can automatically AND the clock enable bit and clock request from S3FWRN5 so that the clock is actually only enabled when needed. It is also conceivable that on some other hardware configuration S3FWRN5's GPIO2 might be connected as a regular GPIO input of the SoC. In that case, follow-up patches could extend the driver to request the GPIO, set up an interrupt and only enable the clock when requested by S3FWRN5. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-13nfc: st-nci: remove unnecessary labelwengjianfeng
in st_nci_spi_write function, first assign a value to a variable then goto exit label. return statement just follow the label and exit label just used once, so we should directly return and remove exit label. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-12nfc: pn533: remove redundant assignmentwengjianfeng
In many places,first assign a value to a variable and then return the variable. which is redundant, we should directly return the value. in pn533_rf_field funciton,return rc also in the if statement, so we use return 0 to replace the last return rc. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-07nfc/fdp: remove unnecessary assignment and labelwengjianfeng
In function fdp_nci_patch_otp and fdp_nci_patch_ram,many goto out statements are used, and out label just return variable r. in some places,just jump to the out label, and in other places, assign a value to the variable r,then jump to the out label. It is unnecessary, we just use return sentences to replace goto sentences and delete out label. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-06nfc: s3fwrn5: remove unnecessary labelwengjianfeng
In function s3fwrn5_nci_post_setup, the variable ret is assigned then goto out label, which just return ret, so we use return to replace it. Other goto sentences are similar, we use return sentences to replace goto sentences and delete out label. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>